Finite Math Examples

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

Step 1

Factor $x$ out of $x^{2} - 3 x$ .

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Step 1.1

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

$x \cdot x - 3 x = 0$

Step 1.2

Factor $x$ out of $- 3 x$ .

$x \cdot x + x \cdot - 3 = 0$

Step 1.3

Factor $x$ out of $x \cdot x + x \cdot - 3$ .

$x (x - 3) = 0$

Step 2

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

$x = 0$

$x - 3 = 0$

Step 3

Set $x$ equal to $0$ .

$x = 0$

Step 4

Set $x - 3$ equal to $0$ and solve for $x$ .

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Step 4.1

Set $x - 3$ equal to $0$ .

$x - 3 = 0$

Step 4.2

Add $3$ to both sides of the equation.

$x = 3$

Step 5

The final solution is all the values that make $x (x - 3) = 0$ true.

$x = 0, 3$

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