Factoring Difference of Squares

Factor

 $4x^2-9$  

• (4x-9)(4x+9)

• (2x-3)(2x+3)

• 2x-3

• (2x-4.5)(2x+4.5)

Tags

CCSS.HSA.APR.C.4

Factor

 $25x^2-81$  

• (5x-9)²

• (5x+9)(5x-9)

• 25(x-9)²

• (9x+5)(9x-5)

Tags

CCSS.HSA.APR.C.4

Factor

 $r^4-q^4$  

• (r² + q²) (r² - q²)

• (r² - q²) (r² - q²)

• (r + q) (r - q)

• Can't factor using Diff. of Squares

Tags

CCSS.HSA.APR.C.4

Which one of the following can be factorized by using the difference of squares?

• $x^3-5$

• $x^2+4$

• $4x^2-7$

• $x^2-144$

Tags

CCSS.HSA.APR.C.4

Factor  $x^2\ -\ 25y^2$  

•  $(x+12.5y)(x-12.5y)$  

•  $(x+5y)(x-5y)$  

•  $\left(x\ -\ 5y\right)^2$  

•  $(x+5y)^2$  

Tags

CCSS.HSA.APR.C.4

Factor  $m^2\ -\ 36$ 

•  $(m+18)(m-18)$  

•  $(m+6)^2$  

•  $\left(m\ -\ 6\right)^2$  

•  $(m\ +\ 6)\left(m\ -\ 6\right)$  

Tags

CCSS.HSA.APR.C.4

Factor  $a^2\ -\ b^2$  

•  $(2a+2b)(2a-2b)$  

•  $(a+b)(a-b)$  

•  $\left(a-\ b\right)^2$  

•  $(a+b)^2$  

Tags

CCSS.HSA.APR.C.4

What is 11 squared?

11²

• 132

• 144

• 121

• 22

Tags

CCSS.8.EE.A.2

What is 5 squared?

5²

• 2.5

• 25

• 125

• 10

Tags

CCSS.8.EE.A.2

What is the square root of 100?

√100

• 10

• 200

• 50

• 1000

Tags

CCSS.8.EE.A.2