Math, asked by rajat8843, 1 year ago

$\sqrt{7 + 2 \sqrt{5} }$

Answers

Answered by RohNav

Assume
$\sqrt{(7 + 2 \sqrt{5} } = x$
squaring
${x}^{2} = 7 + 2 \sqrt{5}$
then
${x}^{2} - 7 = 2 \sqrt{5}$
again squaring,

RohNav: i left my answer not answered well you will square the given equation again. you'll get a bi-quadratic equation in x which you can by substitution convert into a quadratic equation and solve from there.

RohNav: hope it helps

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