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Suppose f(x) = -x^2+3x+4 and g(x) = -2x^3+9x^2-x-12. Every root of f(x) is also a root of g(x). What is the third root of g(x) (that is not a root of (x))?

 May 12, 2019
edited by Lightning  May 12, 2019
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The third root is 8.

 Nov 14, 2019

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