SOLUTION: Solve the following equation: x^3+x^2+2x-4=0. Show your work

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Solve the following equation: x^3+x^2+2x-4=0. Show your work      Log On


   

Question 873216: Solve the following equation: x^3+x^2+2x-4=0. Show your work
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Solve the following equation: x^3+x^2+2x-4=0. Show your work
-----
The sum of the coefficients is zero, so x = 1 is a solution.
Find the complex solutions by 1st using synthetic division::
----
1)...1...1...2...-4
......1...2..4..|..0
-----
Use the Quadratic Formula on x^2 + 2x + 4 = 0
===================
Cheers,
Stan H.
--------------------