The simplest way is by factoring, and quadratics can be solved with the Quadratic Formula. One of the simpler ways for factoring polynomials would be synthetic division. Of course, you can graph the equation, but the roots are sometimes unclear on graphs.
This site should explain it more in depth: http://www.mathsisfun.com/algebra/polynomials-solving.html
The simplest way is by factoring, and quadratics can be solved with the Quadratic Formula. One of the simpler ways for factoring polynomials would be synthetic division. Of course, you can graph the equation, but the roots are sometimes unclear on graphs.
This site should explain it more in depth: http://www.mathsisfun.com/algebra/polynomials-solving.html