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Math Help - algebra

  1. #1
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    algebra

    Any Help would be greatly appreciated
    1.(solved)
    3a 15a^2
    __ / _____

    5b^2 7b^3


    2.
    c^2-3c c
    ______ / ___

    c^2+2c-3 c+1
    Last edited by imbadatmath; March 31st 2008 at 01:16 PM.
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  2. #2
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    Hello,

    Try to use LaTeX or make it on a single line (with appropriate brackets, / for division, * for multiplication), please ^^
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  3. #3
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    Quote Originally Posted by imbadatmath View Post
    Any Help would be greatly appreciated
    1.
    3a 15a^2
    __ / _____

    5b^2 7b^3


    2.
    c^2-3c c
    ______ / ___

    c^2+2c-3 c+1
    This would be handled that same as we did here:

    http://www.mathhelpforum.com/math-he...8-algebra.html

    Except that dividing by a fraction is the same as multiplying by it's inverse.

    Go here to see actual numbers in action:

    Fractions

    Enter any 2 fractions and press the "Divide Fractions" button. You will notice we multiply by the inverse of the denominator. This is what you need to do, but with variables, and the rest is the same as in the thread above where I linked you to.
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  4. #4
    GAMMA Mathematics
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    Quote Originally Posted by imbadatmath View Post
    Any Help would be greatly appreciated
    1.
    3a 15a^2
    __ / _____

    5b^2 7b^3


    2.
    c^2-3c c
    ______ / ___

    c^2+2c-3 c+1
    \frac{3a}{5b^2} \div \frac{15a^2}{7b^3}

    Flip the second fraction to turn the division into multiplication...

    \frac{3a}{5b^2} * \frac{7b^3}{15a^2}

    \frac{3a*7b^3}{5b^2*15a^2}

    Powers on the bottom can be sent to the top as negative exponents!

    \frac{21}{75}a^{1-2}b^{3-2}

    \frac{7}{25}a^{-1}b^{1}

    \frac{7b}{25a}

    Did that help?
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  5. #5
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    what is LaTeX
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  6. #6
    Bar0n janvdl's Avatar
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    Quote Originally Posted by imbadatmath View Post
    what is LaTeX
    http://www.mathhelpforum.com/math-he...latex+tutorial
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