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MULTIPLY WITH DISTRIBUTIVE PROPERTY: Problems 1
STANDARD 10
MULTIPLY WITH DISTRIBUTIVE PROPERTY: Problems 2
POLYNOMIALS
MULTIPLY WITH DISTRIBUTIVE PROPERTY: Problems 3
USE DISTRIBUTIVE PROPERTY TO MULTIPLY BINOMIALS:Problems
MULTIPLY BINOMIALS WITH F.O.I.L.: Problems and MODELING
MULTIPLY POLYNOMIALS VERTICAL FORMAT:Problems
DIFFERENCE OF SQUARES: Problems and MODELING
PERFECT SQUARE TRINOMIALS: Problems and MODELING
FACTORING GENERAL TRINOMIALS
MODELING THIRD DEGREE POLYNOMIALS
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STANDARD 10:
Students add, subtract, multiply, and divide monomials and polynomials. Students solve multi-step problems, including word problems, by using these techniques.
ESTÁNDAR 10:
Los estudiantes suman restan, multiplican, y dividen monomios y polinomios. Los estudiantes resuelven problemas de múltiples pasos, incluyendo problemas escritos, usando estas técnicas.
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3
It is possible to use the distributive property of multiplication over addition to multiply polynomials:
STANDARD 10
Simplify 5y(6y + 5)
=5y(6y) + 5y(5)5y(6y + 5)
=30y + 25y2
MULTIPLYING POLYNOMIALS
Simplify 6p(7p + 5)
=6p(7p) + 6p(5)6p(7p + 5)
=42p + 30p2
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It is possible to use the distributive property of multiplication over addition to multiply polynomials:
STANDARD 10
Simplify -8x(2x + 3x – 6)2
-8x(2x + 3x – 6)2 = -8x(2x ) + (-8x)(3x) + (-8x)(-6)2
= -16x - 24x + 48x3 2
MULTIPLYING POLYNOMIALS
= (-8)(2)x + (-8)(3)x + (-8)(-6)x2+1 1+1
Simplify -5x(3x + 2x – 3)2
-5x(3x + 2x – 3)2 = -5x(3x ) + (-5x)(2x) + (-5x)(-3)2
= -15x - 10x + 15x3 2
= (-5)(3)x + (-5)(2)x + (-5)(-3)x2+1 1+1
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It is possible to use the distributive property of multiplication over addition to multiply polynomials:
Simplify 4x(2x y + 3x y – 6x y )5 4 3 32
= (4x)(2x y) + (4x)(3x y ) + (4x)(-6x y )5 4 2 3 34x(2x y + 3x y – 6x y )5 4 3 32
= (4)(2)x y + (4)(3)x y + (4)(-6)x y1+5 1+4 1+32 3
=8x y + 12x y -24x y6 5 2 4 3
STANDARD 10MULTIPLYING POLYNOMIALS
Simplify 3x(4x y + 5x y – 7x y )6 4 3 32
= (3x)(4x y) + (3x)(5x y ) + (3x)(-7x y )6 4 2 3 33x(4x y + 5x y – 7x y )6 4 3 32
= (3)(4)x y + (3)(5)x y + (3)(-7)x y1+6 1+4 1+32 3
=12x y + 15x y -21x y7 5 2 4 3
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= (2x +1)(x + 4)
(4) x (1)2x x+2x
+1
(4)+
= 2x + 9x + 42
= 2x + 8x + x + 42
=
= (6x +3)(2x + 5)
(5) (2x) (3)6x (2x)+6x
+3
(5)+
=12x + 36x + 152
=12x + 30x + 6x + 152
=
(6x - 3)(x + 5)
(5) x (-3)6x x+6x
+(-3)
(5)+
= 6x + 27x - 152
= 6x + 30x -3x - 152
=
(4x - 3)(3x - 7)
(-7) (3x) (-3)4x (3x) +4x
+(-3)
(-7)+
=12x - 37x + 212
=12x -28x - 9x + 212
=
Multiply the following binomials USING THE DISTRIBUTIVE PROPERTY:
STANDARD 10MULTIPLYING POLYNOMIALS
= 2x(x+4) + 1(x+4) = 6x(2x+5) + 3(2x+5)
(2x +1)(x + 4) (6x +3)(2x + 5)
= (6x - 3)(x + 5)
= 6x(x+5) + (-3)(x+5)
= (4x - 3)(3x - 7)
= 4x(3x-7) + (-3)(3x-7)
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Simplify the following expressions:
(6x +3)(2x + 5)
(5) (2x) (3)6x (2x)+6x
+3
(5)+
F O I L
=12x + 36x + 152
=12x + 30x + 6x + 152
=
(6x - 3)(x + 5)
(5) x (-3)6x x+6x
+(-3)
(5)+F O I L
= 6x + 27x - 152
= 6x + 30x -3x - 152
=
(4x - 3)(3x - 7)
(-7) (3x) (-3)4x (3x) +4x
+(-3)
(-7)+
F O I L
=12x - 37x + 212
=12x -28x - 9x + 212
=
First Outer Inner Last: FOIL Method.
STANDARD 10MULTIPLYING POLYNOMIALS
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(2x +1)(x + 4)
(4) x (1)2x x+2x
+1
(4)+F O I L
= 2x + 9x + 42
= 2x + 8x + x + 42
=
First Outer Inner Last: FOIL Method.
STANDARD 10MULTIPLYING POLYNOMIALS
x
x
x
1
1 1 1 1
x + 4
2x + 1
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Simplify the following expressions:
(2x - 2)(3x - 1)
(-1) (3x) (-2)2x (3x)+2x
+(-2)
(-1)+
F O I L
= 6x - 8x + 22
= 6x -2x - 6x + 22
=
First Outer Inner Last: FOIL Method.
STANDARD 10MULTIPLYING POLYNOMIALS
x
x
x
-1
-1
3x – 1
2x – 2
-1
x x
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(2x – 2)(x + 3)
(3) x (-2)2x x+2x
+(-2)
(3)+F O I L
= 2x + 4x – 6 2
= 2x + 6x -2x – 6 2
=
First Outer Inner Last: FOIL Method.
STANDARD 10MULTIPLYING POLYNOMIALS
x
x
x
-1
1 1 1
x + 3
2x – 2
-1
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11
(2x – 2)(x + 3)
(3) x (-2)2x x+2x
+(-2)
(3)+F O I L
= 2x + 4x – 6 2
= 2x + 6x -2x – 6 2
=
First Outer Inner Last: FOIL Method.
STANDARD 10MULTIPLYING POLYNOMIALS
x
x
x
-1
1 1 1
x + 3
2x – 2
-1
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(2x – 2)(x + 3)
(3) x (-2)2x x+2x
+(-2)
(3)+F O I L
= 2x + 4x – 6 2
= 2x + 6x -2x – 6 2
=
First Outer Inner Last: FOIL Method.
STANDARD 10MULTIPLYING POLYNOMIALS
x
x
x
-1
1 1 1
x + 3
2x – 2
-1
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x+1X
+5-3x+5x-3x2
x2
x3
+5+2xx3 -2x2
x- 4x + 7
2
x-4X
-28+16x+7x-4x2
-4x2
x3
-28+ 23xx3-8x2
x- 3x + 5
2
x -3x + 5
2
x+1 x -4x + 7
2
x-4
STANDARD 10MULTIPLYING POLYNOMIALSMULTIPLY VERTICALY:
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x-2X
- 8+4x+4x-2x2
- 2x2
x3
- 8+8xx3 -4x2
x - 3x + 6
2
x+3X
+18- 9x+6x-3x2
3x2
x3
+18 - 3xx3+0x2
x -2x + 4
2
x -2x + 4
2
x-2 x -3x + 6
2
x+3
STANDARD 10MULTIPLYING POLYNOMIALSMULTIPLY VERTICALY:
+18 - 3xx3
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Difference of Two Squares:
(x+2)(x-2)
STANDARD 10SPECIAL PRODUCTS
x
x
-1
1 1
x +2
x – 2
-1
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Difference of Two Squares:
(x+2)(x-2)
STANDARD 10SPECIAL PRODUCTS
x
x
-1
1 1
x +2
x – 2
-1
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Difference of Two Squares:
(x+2)(x-2) = x - 4 2
STANDARD 10SPECIAL PRODUCTS
x
x
-1
1 1
x +2
x – 2
-1
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STANDARD 10
x
x 1 1 1
x + 3
x – 3 -1
-1
-1
(x+3)(x-3)
SPECIAL PRODUCTS
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STANDARD 10
x
x 1 1 1
x + 3
x – 3 -1
-1
-1
(x+3)(x-3)
SPECIAL PRODUCTS
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STANDARD 10
x
x 1 1 1
x + 3
x – 3 -1
-1
-1
(x+3)(x-3)
SPECIAL PRODUCTS
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STANDARD 10
x
x 1 1 1
x + 3
x – 3 -1
-1
-1
(x+3)(x-3) = x – 9
2
SPECIAL PRODUCTS
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Difference of Two Squares:
(x+2)(x-2) = x - 4 2
(a+b)(a-b) = a - b2 2
(3y+8)(3y-8)
STANDARD 10
9y - 642=
(p+4)(p-4) = p - 162
(2y+5)(2y-5) 4y - 252=
SPECIAL PRODUCTS
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STANDARD 10SPECIAL PRODUCTS
(x +2)2
= (x) + 2(x)(2) + (2)2 2
x + 4x + 42=
x
x
1
1 1
x +2
x + 2
1
= (x+2)(x+2)
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STANDARD 10SPECIAL PRODUCTS
(x +3)2
= (x) + 2(x)(3) + (3)2 2
x + 6x + 92=
x
x
1
1 1
x +3
x + 3
1
= (x+3)(x+3)
1
1
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STANDARD 10
Perfect Square Trinomials:
(a – b) = a - 2ab + b222
(a + b) = a + 2ab + b222
(x +2)2
(x +3)2
= (x) + 2(x)(2) + (2)2 2
= (x) + 2(x)(3) + (3)2 2
= (5x) + 2(5x)(4) + (4) 2 2 (5x + 4)2
(x - 5)2
(x -7)2
= (x) - 2(x)(5) + (5)2 2
= (x) - 2(x)(7) + (7)2 2
= (8x) - 2(8x)(4) + (4) 2 2 (8x - 4)2
x + 4x + 42=
x - 14x +492=
25x + 40x + 162=
x -10x + 252=
x + 6x + 92=
64x - 64x + 162=
SPECIAL PRODUCTS
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STANDARD 10
Multiply:
(x+3)(x+2)(x+1)
(x+2)
(x+1)
(x+3)
(x + 2)(x + 3)
(3) x (2) xx+ x
+ (2)
(3)+F O I L
= x + 5x + 6 2
= x + 3x +2x + 6 2
=
x+1X
+6+5x+6x+5x 2
x2
x3
+6+11xx3 +6x2
x +5x + 6
2
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STANDARD 10
Multiply:
(x+3)(x+2)(x+1) = x + 6x + 11x + 63 2
(x + 2)(x + 3)
(3) x (2) xx+ x
+ (2)
(3)+F O I L
= x + 5x + 6 2
= x + 3x +2x + 6 2
=
x+1X
+6+5x+6x+5x 2
x2
x3
+6+11xx3 +6x2
x +5x + 6
2
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STANDARD 10
Multiply:
(x+3)(x+2)(x+1) = x + 6x + 11x + 63 2
(x + 2)(x + 3)
(3) x (2) xx+ x
+ (2)
(3)+F O I L
= x + 5x + 6 2
= x + 3x +2x + 6 2
=
x+1X
+6+5x+6x+5x 2
x2
x3
+6+11xx3 +6x2
x +5x + 6
2
(x+2)
(x+1)
(x+3)
So, a third degree polynomial may be represented GEOMETRICALLY, by the VOLUME OF A RECTANGULAR PRISM, in this case with SIDES (x+3), (x+2) and (x+1).
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STANDARD 10
Multiply:
(2x+1)(x+3)(x+4)
(x+3)
(x+4)
(2x+1)
(2x + 1)(x + 3)
(3) x (1) 2x x+2x
+ (1)
(3)+F O I L
= 2x + 7x + 3 2
= 2x + 6x +1x + 3 2
=
x+4X
+12+28x+ 3x+7x 2
8x2
2x 3
+12+31x2x 3+15x 2
2x +7x + 3
2
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STANDARD 10
Multiply:
(2x+1)(x+3)(x+4) (2x + 1)(x + 3)
(3) x (1) 2x x+2x
+ (1)
(3)+F O I L
= 2x + 7x + 3 2
= 2x + 6x +1x + 3 2
=
x+4X
+12+28x+ 3x+7x 2
8x2
x3
2x +7x + 3
2
+12+31x2x 3+15x 2
+12+31x2x 3+15x 2=
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STANDARD 10
Multiply:
(2x+1)(x+3)(x+4) (2x + 1)(x + 3)
(3) x (1) 2x x+2x
+ (1)
(3)+F O I L
= 2x + 7x + 3 2
= 2x + 6x +1x + 3 2
=
x+4X
+12+28x+ 3x+7x 2
8x2
x3
2x +7x + 3
2
+12+31x2x 3+15x 2
+12+31x2x 3+15x 2=
(x+3)
(x+4)
(2x+1)
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General Trinomials:
acx + (ad + bc)x + bd = (ax +b)(cx +d)2
B -5B -502
(B+5)(B-10)
-5-50
Two numbers that multiplied be negative fifty should be (+)(-) or (-)(+)
Two numbers that added be negative 5 should be |(-)|>|(+)|
(1)(-50) 1+(-50)= -49
(5)(-10) 5+(-10)= -5(2)(-25) 2+(-25)= -23
1
XFactor the following trinomial:
STANDARD 11
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-60 -11
X
(4)(-15) 4 + -15= -11
12x - 11x -52
12x + (4-15)x -52
12x + 4x -15x -52
4x(3x)+ (4x)1 -5(3x) + (-5)(1)
4x(3x+1) – 5 (3x +1)
(4x- 5)(3x+1)
Factor the following trinomial:
Find two numbers that multiplied be (12)(-5)=-60 and added -11.
(3)(-20) 3 + -20= -17(2)(-30) 2 + -30= -28
(1)(-60) 1 + -60= -59
12x - 11x -52
General Trinomials:
acx + (ad + bc)x + bd = (ax +b)(cx +d)2
STANDARD 11
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+24 +11
X
-6x +11x -42
-6x + (3+8)x -42
-6x + 3x +8x -42
-3x(2x)- (-3x)1 +4(2x) + (4)(-1)
-3x(2x-1) + 4(2x -1)
(-3x+ 4)(2x-1)
Factor the following trinomial:
Find two numbers that multiplied be (-6)(-4)= +24 and added +11.
(3)(8) 3 + 8= 11(2)(12) 2 + 12= 14
(1)(24) 1 + 24= 25
-6x +11x - 42
STANDARD 11
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35
-96 -4
X
(8)(-12) 8 + -12= -4
8x - 4x -122
8x + (8-12)x -122
8x + 8x -12x -122
2x(4x)+ (2x)4 -3(4x) + (-3)(4)
2x(4x+4) – 3 (4x +4)
(2x- 3)(4x+4)
Factor the following trinomial:
Find two numbers that multiplied be (8)(-12)=-96 and added -4.
8x - 4x -122
STANDARD 11
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