You entered the quartic equation 3x4 + 6x3 - 123x2 - 126x + 1080. What do you wish to do with this?
Solve the Quartic?
Use the Rational Roots Theorem followed by Synthetic Division?
Take the first derivative ƒ'(x)
Take the second derivative ƒ''(x)
Determine the integral ∫ƒ(x)dx
Show the coefficients, variables, and exponents for each term in the cubic