(4x-2) ( 2x^2 +3)
We will multiply by using the FOIL method
F first terms 4x* 2x^2 = 8x^3
O outer terms 4x *3 = 12x
I inner terms -2 * 2x^2 = -4x^2
L last terms -2 *3 = -6
Add all the terms together
8x^3 +12x - 4x^2 -6
Arrange in decreasing order of x
8x^3 -4x^2 +12x -6