What is the sum of the roots of the polynomial shown below? f(x)=3x^3+12x^2+3x-18

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What is the sum of the roots of the polynomial shown below? f(x)=3x^3+12x^2+3x-18

Mathematics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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set the equation equal to 0 to find the roots, you should find x= -3, -2, 1 are the roots sum (add) the roots: (-3)+(-2)+1= -4
you can also do this without finding the roots (in case they are harder to find than here)
if you have \[ax^3+bx^2+cx+d=0\] sum of the roots is \[-\frac{b}{a}\] and here you see that \[-\frac{b}{a}=-\frac{12}{3}=-4\]

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produce of the roots (not that you asked) is \[-\frac{d}{a}\] in case you need that one. if all you need is product and sum, you do not need to find the roots, and in some cases finding the roots may be very hard
*product
I had forgotten all of that, thanks satellite.
yw

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