Answer:
4x^3+12x^2-x-3=0
Take the GCF of the groups. By groups, I mean the 1st two coefficients and variables.
4x^2(x-3) -1(x+3) =0
Then equal everything to the big 0.
4x^2=0
x+3=0
Then they're one step equations
x= -3, -1, 0
