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Math Help - polynomial common denominators

  1. #1
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    polynomial common denominators

    I believe I have it right that the common factor of x^2+6x+8 and x^2+2x would be x^2 + 2x. If not let me know.......

    But if those 2 terms were denominators of fractions what is the least common denominator?
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by galanm View Post
    I believe I have it right that the common factor of x^2+6x+8 and x^2+2x would be x^2 + 2x. If not let me know.......
    nope

    But if those 2 terms were denominators of fractions what is the least common denominator?
    x^2 + 6x + 8 = (x + 2)(x + 4) and x^2 + 2x = x(x + 2)

    thus, if combining two fractions with those quadratics as the denominators, the least common denominator would be: x(x + 2)(x + 4)
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  3. #3
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    Quote Originally Posted by galanm View Post
    I believe I have it right that the common factor of x^2+6x+8 and x^2+2x would be x^2 + 2x. If not let me know.
    To learn how to factor the second polynomial, try here.

    To learn how to factor the first polynomial, try here.

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