Question

Упростите выражение b(b^3-b^2+b)-(b^3-b^2+b)

Answer 1

b(b^3-b^2+b)-(b^3-b^2+b) =

=  b^4-b^3+b^2 -b^3 +b^2-b = b^4 -2b^3 +2b^2 -b