Question

a3+b3=200,a+b=8,ab=?

Answer 1

a3+b3=200
(a+b)*3-3ab(a+b)
8*3-3ab(8)
512-24ab=0
512=24ab
ab=21.4

Answer 2

Hey friend here is your answer

Using identity( a+b)3---a3+ b3 + 3ab( a+b)

8^3------200+3ab(8)

512= 200+24ab

512-200=24ab

312=24ab

ab= 13

Hope it helps you

Pls mark brainliest