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February 26, 2015

February 26, 2015

Posted by **Bradley** on Monday, June 2, 2008 at 9:19pm.

a) Find the depressed equation using synthetic division and the root given. Factor out any constants that may appear.

b) Factor the depressed equation (which is now a quadratic) using any method EXCEPT synthetic division.

c) List all the roots for f(x)

- trig -
**Damon**, Monday, June 2, 2008 at 9:51pmThey told you that x = -4 was a root so (x+4) is a factor so divide 3x^3 + 10x^2 - 16x - 32 by (x+4)

I get

3 x^2 - 2 x - 8

Factor that

3 * 1 factors 3

8*1 or 2*4 factors 8

so try 2 and 4

(3x -2)(x+4), nope

(3x-4)(x+2) close

(3x+4)(x-2) aha

so all the roots are

-4

-4/3

+2

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