Posted by **Emma** on Tuesday, January 10, 2012 at 9:32pm.

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

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

- Math -
**Anonymous**, Tuesday, January 10, 2012 at 9:50pm
Enter the equation into a graphing calculator. Then use the zero function under the 2nd Trace menu. Find the zeros.

- Math -
**Steve**, Tuesday, January 10, 2012 at 11:39pm
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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