Question

( √5+√2)^2 find the value of it​

Answer 1

Step-by-step explanation:

(√5×√5+√2×√2)

5+2=7

answer=7

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Answer 2

Step-by-step explanation:

A²-b²

=[2-√5/2+√5]²-[2+√5/2-√5]²

=[2-√5]²/[2+√5]²-[2+√5]²/[2-√5]²

=[4+5-4√5/4+5+4√5]-[4+5+4√5/4+5-4√5]²

=[9-4√5/9+4√5]-[9+4√5/9-4√5]

=[9-4√5]²-[9+4√5]²/9²-[4√5]²

=81+80-72√5-81-80-72√5/81-80

=-144√5/1

=-144√5 ans.

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