Difference of Two Squares Practice

Which is an example of difference of two squares?

• x³ - 4

• x² - 8

• x² + 4

• x² - 4

Tags

CCSS.HSA.SSE.A.2

Factor 4x²-9

• (4x-9)(4x+9)

• (2x-3)(2x+3)

• 2x-3

• (2x-4.5)(2x+4.5)

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Which of these can factor using difference of two squares?

• 144x² - 49

• 144x² + 49

• 100x² - 20

• 4x - 16

Tags

CCSS.HSA.SSE.A.2

We can't factor using difference of two square this

x² + 49. Why?

• Because 49 is not a perfect square

• Because there is no GCF

• Because we can't factor using difference of two squares if it is addition sign.

4x² - 25

• (2x + 5) (2x - 5)

• (2x - 5)²

• (2x + 5)²

• 2x + 5(2x - 5)

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

Fully Factor the Following
25x²-81

• (5x-9)²
• (5x+9)(5x-9)
• 25(x-9)²
• (9x+5)(9x-5)

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

What are the factors of
25x² - 81?

• (5x - 9)(5x + 9)
• (5x - 9)(5x - 9)
• (5x + 9)(5x + 9)
• Cannot be factored

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

x² - 400

• ( x - 200) ( x + 200) 
• ( x + 20) ( x + 20) 
• Prime
• ( x - 20) ( x + 20) 

Tags

CCSS.HSA.SSE.A.2

Fully Factor the Following
25x²-81

• (5x-9)²
• (5x+9)(5x-9)
• 25(x-9)²
• (9x+5)(9x-5)

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Factor 4x²-9

• (4x-9)(4x+9)

• (2x-3)(2x+3)

• 2x-3

• (2x-4.5)(2x+4.5)

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3