Question

Explain it:-
(√5+√2)²​

Answer 1

Answer:

(√5+√2)²

=5+2+2√10

By this formula (a+b)²=a²+b²+2ab

I hope it's clear.

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Answer 2

Answer:

$7 + 2 \sqrt{10}$

Step-by-step explanation:

${( \sqrt{5 + \sqrt{2} } })^{2}$

WE KNOW THAT,

${(a + b)}^{2} = {a}^{2} + {b}^{2} + 2ab$

SO,

$( { \sqrt{5} })^{2} +( \sqrt{ {2})^{2} } + 2 \times \sqrt{5} \times \sqrt{2}$

$= 5 + 2 + 2 \sqrt{10}$

$= 7 + 2 \sqrt{10}$

HOPE IT WILL BE HELPFUL ☺️!..