4.4C Factoring Difference of Squares

Factor the expression completely:

 $x^2-49$  

• Not Factorable

•  $\left(x-7\right)\left(x+7\right)$  

•  $\left(x-7\right)^2$  

•  $\left(x+7\right)^2$  

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Factor the expression completely:

 $x^2-121$  

• Not Factorable

•  $\left(x-11\right)^2$  

•  $\left(x+11\right)^2$  

•  $\left(x+11\right)\left(x-11\right)$  

Tags

CCSS.HSA.SSE.A.2

Factor the expression completely:

 $25x^2+4$  

• Not Factorable

•  $\left(5x-2\right)\left(5x+2\right)$  

•  $\left(5x-4\right)\left(5x-1\right)$  

•  $\left(5x+4\right)\left(5x+1\right)$  

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Factor the expression completely:

 $49x^2-36$  

• Not Factorable

•  $\left(7x-9\right)\left(7x+4\right)$  

•  $\left(7x-4\right)\left(7x+9\right)$  

•  $\left(7x+6\right)\left(7x-6\right)$  

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Factor the expression completely:

 $16x^2-225$  

• Not Factorable

•  $\left(4x-15\right)\left(4x+15\right)$  

•  $\left(8x-25\right)\left(2x+9\right)$  

•  $\left(2x+25\right)\left(8x-9\right)$  

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Factor the expression completely:

 $100x^2-1$  

• Not Factorable

•  $\left(10x-1\right)\left(10x+1\right)$  

•  $\left(100x-1\right)\left(x+1\right)$  

•  $\left(50x+1\right)\left(50x-1\right)$  

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Factor the expression completely:

 $64x^2-81$  

• Not Factorable

•  $\left(8x-9\right)\left(8x+9\right)$  

•  $\left(4x-3\right)\left(16x+27\right)$  

•  $\left(64x+9\right)\left(x-9\right)$  

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

Factor the expression completely:

 $-2x^2+18$  

•  $\left(x+3\right)\left(x-3\right)$  

•  $-2\left(x+9\right)\left(x+1\right)$  

•  $\left(-2x+9\right)\left(x+2\right)$  

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

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Factor the expression completely:

 $-144x^2+169$  

•  $-\left(12x+13\right)\left(12x-13\right)$  

•  $\left(12x+13\right)\left(-12x+13\right)$  

•  $\left(-12x-13\right)\left(12x-13\right)$  

•  $-\left(12x-13\right)\left(12x-13\right)$  

Tags

CCSS.HSA.REI.B.4

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Factor the expression completely:

 $45x^2-20$  

•  $\left(5x+4\right)\left(9x-5\right)$  

•  $\left(3x-10\right)\left(15x+2\right)$  

•  $5\left(3x+2\right)\left(3x-2\right)$  

•  $5\left(9x-1\right)\left(x-4\right)$  

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3