Question

if x = 2√7 find the value of x sq +x/2√7

Answer 1

Here is your answer
Put the value of x in equation
$x {}^{2} + x \div 2 \sqrt{7} \\ (2 \sqrt{7} ) {}^{2} + 2 \sqrt{7} \div 2 \sqrt{7} \\ 28 + 1 \\ 29$
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