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View Full Version : Find all the real zeros f(x)=-2x^4+4x^3-2x^2


Jaybird11
Feb 21, 2011, 08:03 PM

jcaron2
Feb 21, 2011, 08:46 PM
Notice that you can factor an x^2 out of all the terms. Once you do that, it simply leaves a quadratic, which you can solve with the quadratic equation. Once it's factored, do you know how to find the zeros?

Mr_period_C
Feb 22, 2011, 05:20 PM
I would factor out -2x^2, leaving you with x^2 -2x + 1, which factors to (x-1)^2