# How do you factor y= 3x^3-9x^2 ?

Mar 17, 2016

$y = 3 {x}^{2} \left(x - 3\right)$

#### Explanation:

$y = 3 {x}^{3} - 9 {x}^{2}$

Both terms of the equation can be factored by $3 {x}^{2}$

$y = 3 {x}^{2} \left(x\right) - 3 {x}^{2} \left(3\right)$

$y = 3 {x}^{2} \left(x - 3\right)$