# Precalculus Examples

,
Distribute the value across the operation.
Evaluate .
Replace the variable with in the expression.
Simplify the result.
Simplify each term.
Remove parentheses around .
Remove parentheses around .
The final answer is .
Evaluate .
Replace the variable with in the expression.
Simplify the result.
Remove parentheses around .
The final answer is .
Compose the result function for by replacing the function designators with the actual functions.
Simplify.
Rewrite the division as a fraction.
Factor out of .
Reduce the expression by cancelling the common factors.
Cancel the common factor.
Divide by to get .
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