sqrt(63-sqrt(28=sqrt(x

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sqrt(63-sqrt(28=sqrt(x

Guest Jun 25, 2014

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Best Answer

+130511

+5

So we have

√63 -√28 = √x Simplify the left

√(9*7) -√(4*7) = √x

3√7 - 2√7 = √x

√7 = √x

And it's obvious that x = 7

CPhill Jun 25, 2014

1⁺⁰ Answers

+130511

+5

Best Answer

So we have

√63 -√28 = √x Simplify the left

√(9*7) -√(4*7) = √x

3√7 - 2√7 = √x

√7 = √x

And it's obvious that x = 7

CPhill Jun 25, 2014

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