Post a New Question

algebra

posted by .

[-4b-8]+[-1-b^2]+2b^3; b=-2
please can someone explain

  • algebra -

    if all you have to do is evaluate the expression when b = -2, then the value is

    [-4b-8]+[-1-b^2]+2b^3
    [-4(-2)-8]+[-1-(-2)^2]+2(-2)^3
    [8-8]+[-1-4]+2(-8)
    0 - 5 - 16
    -21

  • algebra -

    complicated but I think I understand thanks so much

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question