# What are the solution(s) of 2x^2 - 2x = 1?

Nov 6, 2015

The approximate values are 1.37 and -0.37

#### Explanation:

Rewrite your original equation by moving the constant to the left side of the equation:
$2 {x}^{2} - 2 x - 1 = 0$

Here you have a typical $a {x}^{2} + b x + c = 0$ equation.
Use the ABC-formula to solve the equation.

$\frac{- b \pm \sqrt{{b}^{2} - 4 a c}}{2 a}$

Fill in 2 as a, -2 as b and -1 as c.

You can also use a quadratic equation calculator on line, for example: http://www.math.com/students/calculators/source/quadratic.htm