SOLUTION: f(x)= -3x^3-12x^2-3x+18 How would you write this polynomial in factored form? And how would you graph this ?

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Question 834301: f(x)= -3x^3-12x^2-3x+18
How would you write this polynomial in factored form? And how would you graph this ?

Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
-3%28x%5E3%2B4x%5E2%2Bx-6%29

Check for possible roots 1, 2, 3, 6, -1, -2, -3, -6 with Rational Roots Theorem. The resulting binomial factors tell the x intercepts. They cut the horizontal axis into intervals which you can check for the f(x) as positive or negative.

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