# Precalculus Examples

Simplify the left side .
To write as a fraction with a common denominator, multiply by .
Write each expression with a common denominator of , by multiplying each by an appropriate factor of .
Combine.
Multiply by to get .
Combine the numerators over the common denominator.
Simplify the numerator.
Rewrite as .
Expand using the FOIL Method.
Simplify and combine like terms.
Apply the distributive property.
Simplify.
Multiply by to get .
Rewrite as .
Expand using the FOIL Method.
Simplify and combine like terms.
Move parentheses.
Remove parentheses.
Reorder terms.
Solve for .
Multiply both sides of the equation by .
Simplify the right side.
Multiply by to get .
Multiply by to get .
Remove parentheses.
Set the equation equal to zero.
Move to the left side of the equation by subtracting it from both sides.
Subtract from to get .

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