Question

add 3√2 + 2√5 and 2√2-√5 please solve this question​

Answer 1

$3 \sqrt{2} + 2 \sqrt{5} + (2 \sqrt{2} - \sqrt{5} )$

$= 3 \sqrt{2} + 2 \sqrt{5} + 2 \sqrt{2} - \sqrt{5} \\ = 3 \sqrt{2} + 2 \sqrt{2} + 2 \sqrt{5} - \sqrt{5} \\ = (3 + 2) \sqrt{2} + (2 - 1) \sqrt{5} \\ = 5 \sqrt{2} + 1 \sqrt{5} \\ = 5 \sqrt{2} + \sqrt{5}$