hendo941
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Which expression is equivalent to x2 - 9?
A (x – 3)
B (x – 3)(x– 3)
C (x − 3)(x + 3)
B (x + 3)(x + 3)

Respuesta :

Answer: C. (x-3)(x+3)

Step-by-step explanation: Since both terms are perfect squares, factor using the difference of squares formula a^2-b^2=(a+b)(a-b) where a=x and  b=3.

Hope this helps you out! ☺

liftinum

Answer:

C

Step-by-step explanation:

x*x= x^2

-3*(+3)=-9

2x-9

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