okay i know i have not been showing my work and ya tellin me to use steve post as an example but i don't even kno what im doin to show ya any work and i don't understand this stuff this is my first time learnin it so can yahelp me wit one.
to whomever this may concern
wow - at least you used "whom" correctly.
If you are trying to find roots of cubics, you must have already studied quadratics and factoring, maybe even synthetic division.
Can you find the roots of quadratics? Like
x^2-x-2 = 0
If not, you can forget 3rd-degree functions.