Question

Match correctly1.(x + 2)(x+2)2.(x - 4)(x-4) 3.(x + 7)(x-7) 4.(x-2)^25.(x + 7)(x+7)6.(x-4)(x+4)A. x^2-49B. x^2-4x+4C. x^2+4x+4D. x^2+14x+49E. x^2-16F. x^2+8x+16

Answer 1

1) (x+2)(x+2) = x^2 + 2x + 2x +4 = x^2 +4x+ 4 Option C

2) (x-4)(x-4) = x^2-4x-4x+16 = x^2 - 8x +16 Option F

3) (x+7)(x-7) = x^2 -7x + 7x -49 = x^2 - 49 Option A

4) (x-2)^2 = (x-2)(x-2) = x^2 -2x -2x +4 = x^2 -4x+4 Option B

5) (x+7)(x+7) = x^2 + 7x + 7x + 49 = x^2 +14x + 49 Option D

6) (x-4)(x+4) = x^2 +4x -4x -16 = x^2 -16 Option E