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- Oct 4th 2008, 06:03 AM #1

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## biquadratics

Hi I cant seem to solve this equation. Wikipedia said to sub but I don't know how to then get the x results back. Once i have done this I get confused as to how to put it back into two quadratics which is what i've been aed to do.

Q Express in the form

thnx.

- Oct 4th 2008, 06:13 AM #2

- Oct 4th 2008, 06:26 AM #3

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- Mar 2008
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- Oct 4th 2008, 06:51 AM #4

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- Oct 4th 2008, 07:23 AM #5

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- Oct 4th 2008, 07:54 AM #6