Solve by Factoring x^2-9x=0

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

Step 1

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

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

$x \cdot x - 9 x = 0$

Factor $x$ out of $- 9 x$ .

$x \cdot x + x \cdot - 9 = 0$

Factor $x$ out of $x \cdot x + x \cdot - 9$ .

$x (x - 9) = 0$

Step 2

If any individual factor on the left side of the equation is equal to $0$ , the entire expression will be equal to $0$ .

$x = 0$

$x - 9 = 0$

Step 3

Set $x$ equal to $0$ .

$x = 0$

Step 4

Set $x - 9$ equal to $0$ and solve for $x$ .

Set $x - 9$ equal to $0$ .

$x - 9 = 0$

Add $9$ to both sides of the equation.

$x = 9$

Step 5

The final solution is all the values that make $x (x - 9) = 0$ true.

$x = 0, 9$