simplify square root of 72 + square root of 800 - square root of 18
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= 72 x 72 + 800 x 800 -18 x 18
= 644860
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Answer:
√72= 6√2
√800= 20√2
√18= 3√2
answer = 23√2
if √2= 1.14
answer is 26.22
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