## Step-by-step explanation

Problem to solve:

Learn how to solve quadratic equations problems step by step online.

$x=\frac{-6\pm 2}{2}$

Learn how to solve quadratic equations problems step by step online. Solve the quadratic equation x^2+6x+8=0. To find the roots of a polynomial of the form ax^2+bx+c we use the quadratic formula, where in this case a=1, b=6 and c=8. Then substitute the values of the coefficients of the equation in the quadratic formula:<ul><li>\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}</li></ul>. To obtain the two solutions, divide the equation in two equations, one when \pm is positive (+), and another when \pm is negative (-). Add the values -6 and 2. Add the values -6 and -2.