Question

A) √8 + √98


B) √45 + √20

C) √13 + √19

D) √28 - 10√7

E) √3 + √75 - √12

F) √11 + √44 - 2√99 + √176

Answer 1

a) 2√2 + 7√2 = 2 + 7 √2 = 9√2

b)3√5 + 2√5 = 3 + 2 √5 = 5√5

d) 2√7 - 19√7 = 2 - 19 √7 = - 17√7

e) √3 + 5√3 - 2√3 = 1 + 5 - 2 √3 = 4√3

f) √11 + 2√11 - 2. 3√11 + 4√11 = 1 + 2 - 6 + 4 √11 = √11