Algebra Examples

$P (x) = (x + 5) (x - 3)$

Step 1

Set $(x + 5) (x - 3)$ equal to $0$ .

$(x + 5) (x - 3) = 0$

Step 2

Solve for $x$ .

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Step 2.1

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

$x + 5 = 0$

$x - 3 = 0$

Step 2.2

Set $x + 5$ equal to $0$ and solve for $x$ .

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Step 2.2.1

Set $x + 5$ equal to $0$ .

$x + 5 = 0$

Step 2.2.2

Subtract $5$ from both sides of the equation.

$x = - 5$

Step 2.3

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

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Step 2.3.1

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

$x - 3 = 0$

Step 2.3.2

Add $3$ to both sides of the equation.

$x = 3$

Step 2.4

The final solution is all the values that make $(x + 5) (x - 3) = 0$ true.

$x = - 5, 3$

Step 3