# Thread: I need help on factoring these.

1. ## I need help on factoring these.

By factoring using the zero product principal.
x + 1 = 9^3 + 9^2

9y^3+8=4y+18y^2

4x^3 - 12x^2 = 9x -27

Eeeep. I hate Algebra. ;c

9y^3+8=4y+18y^2
A hint on this one:
9y^3 - 4y - 18y^2 + 8 = 0
y(9y^2 - 4) - 2(9y^2 - 4) = 0

Did you follow that? Can you finish it?

If not, almost impossible to classroom-teach here.

By factoring using the zero product principal.
x + 1 = 9^3 + 9^2

9y^3+8=4y+18y^2

4x^3 - 12x^2 = 9x -27

Eeeep. I hate Algebra. ;c

Factor theorem - Wikipedia, the free encyclopedia

By factoring using the zero product principal.
x + 1 = 9^3 + 9^2

9y^3+8=4y+18y^2

4x^3 - 12x^2 = 9x -27

Eeeep. I hate Algebra. ;c
$4x^3-12x-9x+27=0$
$4x^2(x-3)-9(x-3)=0$