8th alg - l7.7--feb23
TRANSCRIPT
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Assignment:
1>L7.7, pg. 450451, #232 (evens) skip #24 Due Monday (2/27)2>L7.8, pg. 455457, #354 (3rds) skip #21 Due Monday (2/27)3>Chapter 7 Test Thursday (3/1)
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Lesson 7.7 WarmUp:Find each sum or difference. 1) (3c2 c + 11) + (c2 + 2c + 8)
2) (3c2 c + 11) (c2 + 2c + 8)
Simplify each expression.3) 3(5x2 + 2x + 9) + x(2x 3)
4) 9g(2g + g2) 3(g2 + 4)
Solve this equation:5) 9c(c 11) + 10(5c 3) = 3c(c + 5) + c(6c 3) 30
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Lesson 7.7:*To multiply 2 binomials, you can use the distributive property.
(3x 4)(2x + 5)
..."OR"...You can use F
OIL
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**When 2 linear expressions are multiplied, the result is a "quadratic expression".
(the expression contains one term with a degree of 2)
***FYI...there is not a "foil" or shortcut method to multiplying other polynomials must use the distributive property!
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http://www.youtube.com/watch?v=3y2nsCeoTac
Watch this cool video created by a couple of my former students
[Brenden Sexe & Caleb Schaller]
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Lesson 7.7 examples:Find each product.A) (2x + 3)(x + 5)
B) (x 2)(3x + 4)
C) (2y 7)(3y + 5)
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D) (6x + 5)(2x2 3x 5)
E) (2y2 + 3y 1)(3y2 5y + 2)
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F) (m2 + 2m 3)(4m2 7m + 5)