find all real and imaginary solutions of f(x) = x^3 + x^2 + 13x -15
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Originally Posted by kenzie103109 find all real and imaginary solutions of f(x) = x^3 + x^2 + 13x -15 You should be able to see that . So by the remainder and factor theorems, that means is a factor. By using long division: . Now use the Quadratic Formula on the Quadratic factor to find the imaginary solutions.
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