36m^2-84m+49=0

解

36 m^{2} - 84 m + 49 = 0

m = \frac{7}{6}

十進法表記

m = 1.16666 \dots

解答ステップ

36 m^{2} - 84 m + 49 = 0

解くとthe二次式

m_{1, 2} = \frac{- ( - 84 ) \pm ( - 84 ) ^{2} - 4 \cdot 36 \cdot 49}{2 \cdot 36}

(- 84)^{2} - 4 \cdot 36 \cdot 49 = 0

m_{1, 2} = \frac{- ( - 84 ) \pm 0}{2 \cdot 36}

m = \frac{- ( - 84 )}{2 \cdot 36}

\frac{- ( - 84 )}{2 \cdot 36} = \frac{7}{6}

m = \frac{7}{6}

二次equationの解:

m = \frac{7}{6}