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given f(x)= -x^3 +7x^2 -9x -5 and that x = 5 is a root,

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 find the other roots

asked Jun 24, 2013 in ALGEBRA 2 by payton Apprentice

1 Answer

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It was already given that x = 5 one root

We can write it as

So we get x = 5 is one root and the roots for image can be find out by for imaginary roots

Take out 2 common image

Cancel 2 on numerator and denominator image

So the other roots are image.

answered Jun 25, 2013 by jouis Apprentice

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