-8x^2+8x-2=0

解

- 8 x^{2} + 8 x - 2 = 0

x = \frac{1}{2}

十進法表記

x = 0.5

解答ステップ

- 8 x^{2} + 8 x - 2 = 0

解くとthe二次式

x_{1, 2} = \frac{- 8 \pm 8 ^{2} - 4 ( - 8 ) ( - 2 )}{2 ( - 8 )}

8^{2} - 4 (- 8) (- 2) = 0

x_{1, 2} = \frac{- 8 \pm 0}{2 ( - 8 )}

x = \frac{- 8}{2 ( - 8 )}

\frac{- 8}{2 ( - 8 )} = \frac{1}{2}

x = \frac{1}{2}

二次equationの解:

x = \frac{1}{2}