Question

(root 65+root 5) (root 32 + root 125)

Answer 1

Solution:

(√65 + √5)(√32+√125)

= (√13×5+√5)(4√2+5√5)

= [√5(√13+1)(4√2+5√5]

= √5[√13(4√2+5√5)+1(4√2+5√5)]

= √5[4√26+5√65+4√2+5√5]

= 4√130+25√13+4√10+25

••••