Try another version of this question Box 1: Enter your answer as an expression. Example: 3x^2+1, x/5, (a+b)/c
Factor the following expression completely given that one of the roots is 4:
`y^3 + 2 y^2 -31 y + 28` =
Be sure your variables match those in the question `(y-1)(y-4)(y+7)`