# Precalculus Examples

,

Since the roots of an equation are the points where the solution is , set each root as a factor of the equation that equals .

Apply the distributive property.

Apply the distributive property.

Apply the distributive property.

Remove parentheses.

Simplify each term.

Use the power rule to combine exponents.

Add and .

Move to the left of the expression .

Multiply by .

Rewrite as .

Multiply by .

Subtract from .