
Wnada M.
asked 07/06/17I don’t understand square of a number, help!
what is the square root of 32 minus the square root of 8?
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1 Expert Answer

Arturo O. answered 07/06/17
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Experienced Physics Teacher for Physics Tutoring
It is good to factor the numbers.
√32 - √8 = √(25) - √(23) = √(242) - √(222) = 22√2 - 2√2 = 4√2 - 2√2 = 2√2
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Kenneth S.
07/07/17