wkst factoring quadratic expressions

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©M f2q0P1M2V kKTuxtja0 nSRoYf8tDw6aNrCeL BLJLGCG.0 1 EAQltln FreiRglh7t8s7 frGeZsxeRrMvBeNdE.f F wMKaJdZeb OwFiYtUhD OIDnufxiFnDijt1ei 2AclcgneubSrOag M2Y.U Worksheet by Kuta Software LLC Kuta Software - Infinite Algebra 2 Name___________________________________ Period____ Date________________ Factoring Quadratic Expressions Factor each completely. 1) x 2 - 7 x - 18 2) p 2 - 5 p - 14 3) m 2 - 9m + 8 4) x 2 - 16 x + 63 5) 7 x 2 - 31 x - 20 6) 7k 2 + 9k 7) 7 x 2 - 45 x - 28 8) 2b 2 + 17b + 21 9) 5 p 2 - p - 18 10) 28n 4 + 16n 3 - 80n 2 -1-

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Factoring Quadratic Expressions

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Page 1: WKST Factoring Quadratic Expressions

©M f2q0P1M2V kKTuxtja0 nSRoYf8tDw6aNrCeL BLJLGCG.0 1 EAQltln FreiRglh7t8s7 frGeZsxeRrMvBeNdE.f F wMKaJdZeb OwFiYtUhD OIDnufxiFnDijt1ei 2AclcgneubSrOag M2Y.U Worksheet by Kuta Software LLC

Kuta Software - Infinite Algebra 2 Name___________________________________

Period____Date________________Factoring Quadratic Expressions

Factor each completely.

1)

x2 − 7

x − 18 2)

p2 − 5

p − 14

3)

m2 − 9

m + 8 4)

x2 − 16

x + 63

5)

7

x2 − 31

x − 20 6)

7

k2 + 9

k

7)

7

x2 − 45

x − 28 8)

2

b2 + 17

b + 21

9)

5

p2 −

p − 18 10)

28

n4 + 16

n3 − 80

n2

-1-

Page 2: WKST Factoring Quadratic Expressions

©4 f2x0R1D2c TKNuit8aY ASXoqfytGwfacrYed fLKLvC6.u g eArlklA mrviZgLhBtQsd JrleospeGr7vHehdk.5 e kMjaWdre0 cwliDtEhC OI6ntfZikn0irt1ek xAIl7gzecbnrHaX m2H.6 Worksheet by Kuta Software LLC

11)

3

b3 − 5

b2 + 2

b 12)

7

x2 − 32

x − 60

13)

30

n2b − 87

nb + 30

b 14)

9

r2 − 5

r − 10

15)

9

p2r + 73

pr + 70

r 16)

9

x2 + 7

x − 56

17)

4

x3 + 43

x2 + 30

x 18)

10

m2 + 89

m − 9

Critical thinking questions:

19) For what values of

b is the expression

factorable?

x2 +

bx + 12

20) Name four values of

b which make the

expression factorable:

x2 − 3

x +

b

-2-

Page 3: WKST Factoring Quadratic Expressions

©n m2R0i1P2g WKwuotja0 eSyodf4tBwAahrmel tLNLzC6.r D AA6lHlw srdi8gGhLtRs1 pr7eBsMepr9vResdj.d e OM4addteU Bw1i6tNhr sIPnbfhi1nmiUtye1 iAVlCgqesbtr8ai C2e.Y Worksheet by Kuta Software LLC

Kuta Software - Infinite Algebra 2 Name___________________________________

Period____Date________________Factoring Quadratic Expressions

Factor each completely.

1)

x2 − 7

x − 18

(

x − 9)(

x + 2)

2)

p2 − 5

p − 14

(

p + 2)(

p − 7)

3)

m2 − 9

m + 8

(

m − 1)(

m − 8)

4)

x2 − 16

x + 63

(

x − 9)(

x − 7)

5)

7

x2 − 31

x − 20

(

7

x + 4)(

x − 5)

6)

7

k2 + 9

k

k(

7

k + 9)

7)

7

x2 − 45

x − 28

(

7

x + 4)(

x − 7)

8)

2

b2 + 17

b + 21

(

2

b + 3)(

b + 7)

9)

5

p2 −

p − 18

(

5

p + 9)(

p − 2)

10)

28

n4 + 16

n3 − 80

n2

4

n2(

7

n − 10)(

n + 2)

-1-

Page 4: WKST Factoring Quadratic Expressions

©e q2Z0V1u25 8Kvuxtkah GSSoffptdw9aprHeH 8LeL9Cd.r k SAsl5lD crQiigXhytcsE RrneDsUezrZvLeNdd.y 3 lMsaldFez kwri8t8hG fIHndfriinGiNtHeP 9AIlSgoeFb8rpao T2F.X Worksheet by Kuta Software LLC

11)

3

b3 − 5

b2 + 2

b

b(

3

b − 2)(

b − 1)

12)

7

x2 − 32

x − 60

(

7

x + 10)(

x − 6)

13)

30

n2b − 87

nb + 30

b

3

b(

2

n − 5)(

5

n − 2)

14)

9

r2 − 5

r − 10

Not factorable

15)

9

p2r + 73

pr + 70

r

r(

p + 7)(

9

p + 10)

16)

9

x2 + 7

x − 56

Not factorable

17)

4

x3 + 43

x2 + 30

x

x(

x + 10)(

4

x + 3)

18)

10

m2 + 89

m − 9

(

m + 9)(

10

m − 1)

Critical thinking questions:

19) For what values of

b is the expression

factorable?

x2 +

bx + 12

13, 8, 7, −13, −8, −7

20) Name four values of

b which make the

expression factorable:

x2 − 3

x +

b

Many answers. Ex: 0, 2, −4, −10, −18

-2-

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