Question

answer these questions​

Answer 1

6.(√5+√2)2

= (√5+√2)× (√5+√2)

= (√5)2+(√2)2 +2× √5×√2

= 5+2+ 2√10

= 7+2√10

I have solved both i and ii of 7.

Use formula= (a+b) × (a-b)= a square- b square