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December 21, 2014

December 21, 2014

Posted by **Kira** on Tuesday, August 28, 2007 at 6:22pm.

f(x)=x^4-2x^2,g(x)=2x^2

- pre-cal -
**bobpursley**, Tuesday, August 28, 2007 at 6:40pmset them equal, and solve for x

x^4-2x^2=2x^2

x^4-4x^2=0

(x^2-2x)(x^2+2x)=0

x^2(x-2)(x+2)=0

and now you have four solutions (two zeroes).

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