Question

how do I factor this problem F(X) = 5x^3+7x^2-x+9

Answer 1

this doesn't factor over rational numbers. only one real zero, and it is not rational

Answer 2

A plot is attached.\[x=\frac{1}{15} \left(-7-\frac{32\ 2^{2/3}}{\left(1769-45 \sqrt{1513}\right)^{1/3}}-\left(2 \left(1769-45 \sqrt{1513}\right)\right)^{1/3}\right)=-1.96694 \]