Question

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

Answer 1

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

Explanation:

`-3x^2 + 9x = 0`

Here, `3x` is a common factor:

`3x(-x +3) = 0`

`3x = 0 or (-x +3) = 0`

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