324k^2+36k+1=0

解

324 k^{2} + 36 k + 1 = 0

k = - \frac{1}{18}

十進法表記

k = - 0.05555 \dots

解答ステップ

324 k^{2} + 36 k + 1 = 0

解くとthe二次式

k_{1, 2} = \frac{- 36 \pm 3 6 ^{2} - 4 \cdot 324 \cdot 1}{2 \cdot 324}

3 6^{2} - 4 \cdot 324 \cdot 1 = 0

k_{1, 2} = \frac{- 36 \pm 0}{2 \cdot 324}

k = \frac{- 36}{2 \cdot 324}

\frac{- 36}{2 \cdot 324} = - \frac{1}{18}

k = - \frac{1}{18}

二次equationの解:

k = - \frac{1}{18}