Simplify 5√7+√7−2√7 A.4√7 B.3√21 c.3√7 d.4√21 i really am stuck on this problem.

asked Apr 19, 2021 220k views

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Simplify 5√7+√7−2√7

A.4√7
B.3√21
c.3√7
d.4√21
i really am stuck on this problem.

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3 votes

5√7+√7−2√7

Going from left to right:

5√7+√7 = 6√7

6√7 - 2√7 = 4√7

The answer is A. 4√7

Ethel Patrick answered Apr 26, 2021

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