Question

Simplify (3√5 − 5√2)(4√5 + 3√2)

Answer 1

(3√5-5√2)(4√5+3√2)

3√5(4√5+3√2)-5√2(4√5+3√2)

60 + 9√10 - 20√10 + 30

90 - 11√10