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Math Help - Exam tomorrow

  1. #1
    Junior Member
    Joined
    Mar 2008
    Posts
    51

    Exam tomorrow

    Solve the equation. Show me step by step please

    5*x^1/3=35
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  2. #2
    Newbie
    Joined
    Jan 2008
    Posts
    17

    rambo: here's your solution, step by step

    you want to solve for x, so we have to start to leave x alone on one side.

    since the 5 is multiplying the x^(1/3), you want to divide both sides by x.
    now we're left with:
    x^(1/3)=7

    now to get rid of the "1/3", you would take the "x^(1/3)" and raise it to the power of 3, and of course, you want to do that to both sides, so now we get:
    (x^1/3)^3=7^3
    the 1/3 and the 3 cancel each other out so now we have:
    x=7^3
    and just solve 7^3 so:
    x=343.

    that's your answer.
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