# How do you solve 0 = x^2 - 5/2x + 1/2 using the quadratic formula?

Apr 5, 2017

${x}^{2} - 2.5 x + 0.5 = 0$ and $x 1 = 2.28$ and $x 2 = 0.219$
Let me calculate delta first: $\Delta = {b}^{2} - \left(4 \cdot a \cdot c\right)$ where a is 1 b is -2.5 and c is 0.5. Then $\Delta = 4.25$.
Using solution $x 1 = \frac{- b + \sqrt{\Delta}}{2 a}$ and $x 2 = \frac{- b - \sqrt{\Delta}}{2 a}$
you can get $x 1 = 2.28$ and $x 2 = 0.219$