Math

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Solve for x: x^4-15X^2+14=0

How would I solve this problem? Could someone please show me the steps?

  • Math -

    Enter the equation into a graphing calculator. Then use the zero function under the 2nd Trace menu. Find the zeros.

  • Math -

    Or, notice that it's just a quadratic in x^2:

    (x^2 - 14)(x^2 - 1) = 0
    x = ±√14 or ±1

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