Question

Please solve this question

Answer 1

Refer the above attachment.

Hope this helps...!

Answer 2

(2√2 + 5√3 - 7√5 ) + (3√3 - √2+√5)

= 2√2 - √2+5√3 + 3√3 -7√5 + √5

= √2(2-1) + √3(5+3)+√5(-7+1)

= √2 + 8√3 - 6√5