Factor -4x^3-12x^3+9x^2

$- 4 x^{3} - 12 x^{3} + 9 x^{2}$

Step 1

Subtract $12 x^{3}$ from $- 4 x^{3}$ .

$- 16 x^{3} + 9 x^{2}$

Step 2

Factor $- x^{2}$ out of $- 16 x^{3} + 9 x^{2}$ .

Factor $- x^{2}$ out of $- 16 x^{3}$ .

$- x^{2} (16 x) + 9 x^{2}$

Factor $- x^{2}$ out of $9 x^{2}$ .

$- x^{2} (16 x) - x^{2} (- 9)$

Factor $- x^{2}$ out of $- x^{2} (16 x) - x^{2} (- 9)$ .

$- x^{2} (16 x - 9)$