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Posted by on Thursday, October 27, 2011 at 2:50am.

When two rational expressions are divide, the quotient is 5x² + 3x + 12 + 7/(x + 5. What are the two polynomials?

  • Algebra 2 - , Thursday, October 27, 2011 at 4:55am

    The expression above is a rational expression, not a quotient.

    A quotient is just a polynomial, and does not include the division.

    Take another look at the problem and post it as it says.

  • Algebra 2 - , Thursday, October 27, 2011 at 8:24am

    You are missing a closing bracket

    Work backwards by finding a common denominator ...

    5x² + 3x + 12 + 7/(x + 5)
    = [5x^2(x+5) + 3x(x+5) + 12(x+5) + 7]/(x+5)
    = (5x^3 + 25x^2 + 3x^2 + 15x + 12x + 60 + 7)/(x+5)
    = (5x^3 + 28x^2 + 27x + 67)/(x+5)

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