Question

a^2+b^2=15,a-b=3 and ab=? find ab

Answer 1

hope it will help you!!

Answer 2

as we know that a-b=3
now s.b.s
(a-b)^2=9
a^2+b^2=9+2ab
so,now
9+2ab=15
2ab=6
ab=3