Group quiz

(2x-9)(2x+9)

• 4^2-81

• 4x^2+81

(3x+8)(____) =9x² -64

What is the product of (x + 4) (x - 4)?

• x² - 8

• x² - 16

• x² + 8

• x² + 16

Which equation is equivalent to :

"The sum of three and five is equal to eight"

• 3+5=x

• 3+4=7

• 3+5=8

• 3+6=9

(x+4)²

• x²+16
• x²-16
• x²+8x+16
• x²+8x-16

 $(x+y)(x−y)=x^2−y^2$  

• TRUE

• FALSE