Precalculus Examples

Step 1
Simplify .
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Step 1.1
Cancel the common factor of and .
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Step 1.1.1
Factor out of .
Step 1.1.2
Cancel the common factors.
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Step 1.1.2.1
Factor out of .
Step 1.1.2.2
Cancel the common factor.
Step 1.1.2.3
Rewrite the expression.
Step 1.2
Combine and .
Step 2
Since the equation can be written in the form , varies directly with and . The constant of variation, , is .
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