3 years ago

what is the exact value for the expression Square root 56 - Square root 14 + Square root 126 ? simplify if possible

1 answer:

4 0

$\sqrt{56} - \sqrt{14} + \sqrt{126} = \sqrt{4\cdot14} - \sqrt{14} + \sqrt{9\cdot14} =\\=2 \sqrt{14} - \sqrt{14} +3 \sqrt{14} =2 \sqrt{14} - 1\sqrt{14} +3 \sqrt{14} =4 \sqrt{14}$

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