Question 920140
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Hi
F(x)=x^3+4x^2-9x-36  (x = 3 is a root)
Using Synthetic Division
3	1	4	-9	-36
		3	21	36
	1	7	12	0
(x-3)(x^2 + 7x + 12)
(x-3)(x+3)(x+4) =  0
Zeros are: -4,-3, 3