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    Kelli-Anne's Avatar
    Kelli-Anne Posts: 4, Reputation: 1
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    #1

    Mar 21, 2010, 09:42 PM
    how to transpose this; ax^3=b+cx^2 to make x the subject
    ax^3=b+cx^2 to make x the subject
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #2

    Mar 21, 2010, 10:02 PM

    Same deal:

    Get cx^2 on one side of the = sign.

    Then X^2

    and finally x

    Try.
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
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    #3

    Mar 22, 2010, 10:26 AM

    Since this is a cubic, try googling Cardano's formula. There is a formula for a cubic like there is for a quadratic. It's more complicated though.
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