4 years ago

Can someone please tell me what r^2 - 9 = is?

Mathematics

1 answer:

cestrela7 [59]4 years ago

6 0

Answer:

The answer is (r + 3)(r - 3)

Step-by-step explanation:

There need to be two number that add together to get 0

and two number that multiply together to get -9

3 + -3 = 0

3 · -3 = -9

= (r + 3)(r - 3)

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