thedarkcupidkid thedarkcupidkid

03-06-2020
Mathematics

contestada

What is the answer for (3m-n)(3m+n)

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meredith48034 meredith48034

03-06-2020

Answer:

Step-by-step explanation:

9m^2 + 3mn - 3mn - n^2

9m^2 - n^2

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