Question

what is the value of (√2+√5) ^2=​

Answer 1

Answer:

Hope it really helps...

Answer 2

Answer:

$to \: find - \\ ( \sqrt{2} + \sqrt{5 } ) {}^{2} = (a + b) {}^{2} \\ = a {}^{2} + b {}^{2} + 2ab \\ ( \sqrt{2} ) {}^{2} + ( \sqrt{5} ) {}^{2} + 2 \times \sqrt{2} \times \sqrt{5} \\ 2 + 5 + 2 \sqrt{10} \\ = 7 + 2 \sqrt{10}$