Factoring Quiz

The expression

 $x^2-16$  is equivalent to

• (x+2)(x-8)

• (x-2)(x+8)

• (x-4)(x+4)

• (x-8)(x+8)

Tags

CCSS.HSA.APR.C.4

Factor:  $x^2+3x-40$  

• (x+3)(x-40)

• (x-8)(x+5)

• (x+10)(x-4)

• (x+8)(x-5)

Factor:  $b^2+9b+20$  

• (b+5)(b+4)

• (b+9)(b+20)

• (b-5)(b-4)

• (b+10)(b+2)

What is the GCF of  $3a^3-9a^2-54a$  ?

• 3

• 3a

• a

•  $a^2$  

Factor:  $9x^2-64y^2$  

• (9x-64y)(9x+64y)

•  $\left(3x^2-8y^2\right)\left(3x^2+8y^2\right)$  

• 9x(x-64y)

• (3x-8y)(3x+8y)

Tags

CCSS.HSA.APR.C.4

Factor: 9x + 36

• 9(x+4)

• 9x+36

• x(9+36)

• 9x(x+4)

Tags

CCSS.7.EE.A.1

Factor:  $14a+21a^2+21a^3$  

• 14(a+21+21)

•  $7a\left(2+3a+3a^2\right)$  

•  $7\left(2a+3a^2+3a^3\right)$  

•  $14a\left(a+3+a^2\right)$  

Factor:  $12a^3-9a^2+4a-3$  

•  $\left(3a^2+4a\right)\left(1-3\right)$  

•  $a^3\left(12-9\right)a\left(4-3\right)$  

•  $\left(3a^2+1\right)\left(4a-3\right)$  

•  $\left(4a-3\right)\left(4a-3\right)$  

Factor:  $w^2+81$  

• (w-81)(w+81)

• (w-9)(w+9)

• w(w+9)

• not factorable

Tags

CCSS.HSA.APR.C.4

What method would you use to factor $5x^4-10x^3-75x^2$  

• GCF

• DOTS

• Grouping

• Trinomial