Question

7+3√5/3+√5 - 7-4√5/3-√5

Answer 1

7+3√5/3+√5-7-4√5/3-√5
3√5/3-4√5/3
√5/3(3-4)
-1√5/3

Answer 2

Given:

7+3√5/3+√5-7-4√5/3-√5

The terms √5,-√5,7 and -7 will get cancelled as they add up to 0.

just like a-a=0

Also 3√5/3=√5

So we get:-

√5-4√5/3

=(3√5-4√5)/3

=-√5/3

Thats the answer.

Hope it helps you.