Question

Can someone please solve these?

Answer 1

Explanation:

1) √2 + 2√2 = ( 1 + 2 ) √2 = 3*√2 = 3√2

4) √8 + √2 = √2*2*2 + √2 = 2√2 + √2 = ( 2 +1 ) √2 = 3√2

7) 2√5 - √5 = (2 - 1)√5 = 1 √5

10 3√5 - 2√5 = (3 - 2) √5 = 1√5