# How do you solve -3x^2 + 9x = 0?

Jun 23, 2015

color(green)(x= 0 or x = 3

#### Explanation:

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

Here, $3 x$ is a common factor:

$3 x \left(- x + 3\right) = 0$

$3 x = 0 \mathmr{and} \left(- x + 3\right) = 0$

color(green)(x = 0 or x= 3