3fan4ever 3fan4ever

10-01-2020
Mathematics

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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.

Respuesta :

musiclover10045 musiclover10045

10-01-2020

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

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