Asked by Sandra

What is the factored form of the expression? r2 – 49
(r – 7)(r + 7) * my answer
(r + 7)(r + 7)
(r – 7)(r – 7)
(r – 7)(r + 9)

Answers

Answered by Ashley
You are correct!
Answered by Brady
I agree with Ashley that your answer is correct.

In order to get r^2 - 49, you have have the equation in A. Then, you would multiply the like terms together to get the final answer of r^2 - 49.

(r - 7)(r +7) = r^2 - 49

r x r = r^2
-7 x 7 = -49

r^2 - 49 = r^2 - 49

So yes, A is the correct answer.
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