Question

Evaluate where a = 1 and b = -1

a²b(a³-a+1) -ab(a⁴-2a²+2a)-b(a³-a²-1)​

Answer 1

Answer:

1(-1)(1-1+1)-1(-1)(1-2(1)+2(1))-(-1)(1-1-1)

=(-1)(1)+1(1)+1(-1)

=-1+1-1

=1

Ans=1