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Math Help - how do i solve this? factor?

  1. #1
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    how do i solve this? factor?

    12X3+30X2=0



    the small nubers 3, and 2 are to the third power and second power. i just dont know how to make the numbers go higher
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  2. #2
    MHF Contributor Siron's Avatar
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    Re: how do i solve this? factor?

    The equation is:
    12x^3+30x^2=0

    You can put a factor x^2 outside therefore you get:
    x^2(12x+30)=0

    So now, what are the solutions?
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  3. #3
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    e^(i*pi)'s Avatar
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    Re: how do i solve this? factor?

    Quote Originally Posted by usmcadam View Post
    12X3+30X2=0



    the small nubers 3, and 2 are to the third power and second power. i just dont know how to make the numbers go higher
    Start with dividing both sides by 6: 2x^3 + 5x^2 =0

    You can then factor out x^2 (as the highest common factor) like Siron did: x^2(2x+5) = 0
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