Question

pliz help me guys to solve​

Answer 1

Answer:

2ab in this answers bhi

Answer 2

Answer:

we know

a³-b³=(a-b)(a²+b²+ab) (1)

a/b+b/a=-1

by taking lcm and by solving........

a²+b²=-ab

then..a²+b²+ab=0

by putting value in eq 1

we havea³-b³=(a-b)×0=0