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Math Help - uhh i forgot how to do this =/..

  1. #1
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    uhh i forgot how to do this =/..

    Here's the problem:

    If 9x^3+3x^2 is divided by 3x^2, the quotient is

    3x

    6x

    3x+1

    6x+1

    Please don't just tell me the answer, i also want to know how to do it.
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  2. #2
    Senior Member topher0805's Avatar
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    <br />
\frac {9x^3+3x^2}{3x^2} = \frac {9x^3}{3x^2} + \frac {3x^2}{3x^2}<br />

    Factor a 3 out of everything:

    <br />
\frac {3x^3}{x^2} + \frac {x^2}{x^2}

    Factor an x^2 out of everything:

    Can you solve it from here?
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  3. #3
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    Quote Originally Posted by topher0805 View Post
    <br />
\frac {9x^3+3x^2}{3x^2} = \frac {9x^3}{3x^2} + \frac {3x^2}{3x^2}<br />

    Factor a 3 out of everything:

    <br />
\frac {3x^3}{x^2} + \frac {x^2}{x^2}

    Factor an x^2 out of everything:

    Can you solve it from here?

    The answer is C right? Wow i feel like an idiot, that was such an easy question and i just didn't feel like reading the whole questions correctly. I should read the question better more often.
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  4. #4
    Senior Member topher0805's Avatar
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    Yes the answer is C. Sometimes putting the question down for a few minutes then coming back to it can help. Never underestimate the power of a fresh pair of eyes.
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