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#1 2007-09-05 06:22:29

Daniel123
Member
Registered: 2007-05-23
Posts: 663

Factorising

Hello

I have a factorising question 2x^4 + 14x² + 24, and the hint next to the question says "let y = x²".

What does that mean? I came up with an answer.. but did it the way I usually factorise...

thanks

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#2 2007-09-05 07:08:07

pi man
Member
Registered: 2006-07-06
Posts: 251

Re: Factorising

If you make y=x^2, then your original equation becomes:

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