To review, try here.
The Rational Roots Test tells you to check x = -1 and x = +1, using synthetic division. Once you've found one root, you can apply the Quadratic Formula to what remains.
To review, try here.
The Rational Roots Test tells you to check x = -1 and x = +1, using synthetic division. Once you've found one root, you can apply the Quadratic Formula to what remains.