Saturday
May 23, 2015

Homework Help: Precalculus

Posted by Emily on Tuesday, December 8, 2009 at 11:56pm.

Solve the equation x^3 - 2x + 4 = 0.

==> I know the answer is -2, but I can't seem to remember how to solve these by hand without using a graphing calculator. Any help is greatly appreciated!! :)

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