Answer:
Expand:
This is in its expanded form.
Simplify:
First do the x and the (x-4)
distribute the x
(x^2-4x)
Then FOIL or draw you grid and multiply out.
x^2 times x = x^3
x^2 times -1 = -x^2
-4x times x = -4x^2
-4x times -1 = 4x
Combine like terms.
x^3 + (-4x^2 -x^2) + 4x
Answer : x^3 - 5x^2 + 4x
