Find the LCD of the rational expressions.

NEED HELP NOW! Rational Expressions--Alg. 2?

  • Answer:

    Flip the second fraction and then multiply. Also, factor and cross cancel as needed. ((x•x)/(x+1)(x-1)) • ((x+1)/3x) = the x+1 each cancels out and cancel one x from x² and 3x leaving x/(x-1) • 1/3 = x/(3(x-1)) =

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Flip the second fraction and then multiply. Also, factor and cross cancel as needed. ((x•x)/(x+1)(x-1)) • ((x+1)/3x) = the x+1 each cancels out and cancel one x from x² and 3x leaving x/(x-1) • 1/3 = x/(3(x-1)) =

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