Precalculus Examples

Replace all occurrences of with a single . A plus sign followed by a minus sign has the same mathematical meaning as a single minus sign because
Factor out of .
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Factor out of .
Reorder and .
Factor out of .
Factor out of .
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Factor out of .
Factor out of .
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Factor out of .
Move .
Multiply by .
Reorder and .
Factor out of .
Factor out of .
Reduce the expression by cancelling the common factors.
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Cancel the common factor.
Rewrite the expression.
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