Precalculus Examples

To find the roots of the equation, replace with and solve.
Rewrite the equation as .
Factor the left side of the equation.
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Factor out of .
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Factor out of .
Factor out of .
Factor out of .
Rewrite as .
Factor.
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Since both terms are perfect squares, factor using the difference of squares formula, where and .
Remove unnecessary parentheses.
Set equal to and solve for .
Set equal to and solve for .
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Set the factor equal to .
Subtract from both sides of the equation.
Set equal to and solve for .
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Set the factor equal to .
Add to both sides of the equation.
The solution is the result of and .
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