An alternative method to solve a quadratic equation is to complete ... solutions in decimal form, continue on with a calculator, adding and subtracting the square root to find the two solutions.

An alternative method to solve a quadratic equation ... root both sides: \(x – 2 = \pm\sqrt{7}\) Add 2 to both sides: \(x = 2 \pm\sqrt{7}\) This gives the two exact solutions in surd form.