College Algebra / Alg 108 · Atom · ~20 seconds
Multiplying Rational Expressions
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Rational expressions multiply straight across — numerator times numerator over denominator times denominator — with factoring and canceling first to keep results small.
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(2/x) · (x²/4): the x and the 2 cancel across, leaving x/2. At x = 2, both sides equal 1. Factor before multiplying and the canceling does the work.
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