# What is the standard form of y=3x^2(x-3) ?

Feb 12, 2017

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

Or

$y = 3 {x}^{3} - 9 {x}^{2} + 0 x + 0$

#### Explanation:

To put this in standard form expand the term in parenthesis on the right side of the equation:

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

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

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

Or

$y = 3 {x}^{3} - 9 {x}^{2} + 0 x + 0$