Question

$7 {x}^{2} - 2 \sqrt{8x - } 6 =$
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Answer 1

Hello friend here is your answer..

$7x^2-2\sqrt{8x-6} \\7x^2-2\sqrt{(4*2)x-6}\\ 7x^2-2*2\sqrt{2x-6} \\7x^2-4\sqrt{2x-6}$

Hope my answer will help you.