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Math Help - X-Intercept

  1. #1
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    X-Intercept

    Can someone do a step by step of how to solve for the x-intercept with this equations:

    y=3x^2 + 4x - 6

    y = x^3 - x^2 - x + 1
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  2. #2
    A riddle wrapped in an enigma
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    Quote Originally Posted by Dickson View Post
    Can someone do a step by step of how to solve for the x-intercept with this equations:

    y=3x^2 + 4x - 6

    y = x^3 - x^2 - x + 1
    Hi Dickson,

    The x-intercepts will be the zeros of the functions.

    Looks like you'll have to use the quadratic formula on the first one.

    On the second one, possible rational zeros are +1 and -1. See which one works using synthetic division and then solve the depressed quadratic for the other two zeros.
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  3. #3
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    Alright thanks a lot
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