Mirr115 Mirr115

08-11-2018
Mathematics

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tonytlan06 tonytlan06

08-11-2018

First, you need to get rid of the 3 in 3*sqrt(7).

What is the square of 3?

3^2 = 9

So 3*sqrt(7) = sqrt(7*9).

You need to compare that with sqrt(7x).

x = 9

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