Question

Solve the equation using the Zero-Product Property.
(x-2)(x+7)=0


A. 2, -7


B. 2, 7

C. –1,1

D. –2, -7

Answer 1

what is the zero-product property?

Answer 2

is the answer A?

Answer 3

A says x can be 2 or -7
if x were 2
in (x-2)(x+7)=0 you replace the x with 2:
(2-2)(2+7)=0
2-2 is 0 and 0 times anything is 0. so 2 works

if x were -7:
(-7 -2 )(-7+7) =0
-7+7 is 0, and 0 times -9 is 0. -7 works