x^2-26x+169=0

解

x^{2} - 26 x + 169 = 0

x = 13

解答ステップ

x^{2} - 26 x + 169 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 26 ) \pm ( - 26 ) ^{2} - 4 \cdot 1 \cdot 169}{2 \cdot 1}

(- 26)^{2} - 4 \cdot 1 \cdot 169 = 0

x_{1, 2} = \frac{- ( - 26 ) \pm 0}{2 \cdot 1}

x = \frac{- ( - 26 )}{2 \cdot 1}

\frac{- ( - 26 )}{2 \cdot 1} = 13

x = 13

二次equationの解:

x = 13