0.825x^2+0.15x-0.003621753=0

解

0.825 x^{2} + 0.15 x - 0.003621753 = 0

x = \frac{- 0.15 + 0.0344517849}{1.65}, x = \frac{- 0.15 - 0.0344517849}{1.65}

十進法表記

x = 0.02158 \dots, x = - 0.20340 \dots

解答ステップ

0.825 x^{2} + 0.15 x - 0.003621753 = 0

解くとthe二次式

x_{1, 2} = \frac{- 0.15 \pm 0.1 5 ^{2} - 4 \cdot 0.825 ( - 0.003621753 )}{2 \cdot 0.825}

0.1 5^{2} - 4 \cdot 0.825 (- 0.003621753) = 0.0344517849

x_{1, 2} = \frac{- 0.15 \pm 0.0344517849}{2 \cdot 0.825}

解を分離する

x_{1} = \frac{- 0.15 + 0.0344517849}{2 \cdot 0.825}, x_{2} = \frac{- 0.15 - 0.0344517849}{2 \cdot 0.825}

x = \frac{- 0.15 + 0.0344517849}{2 \cdot 0.825} : \frac{- 0.15 + 0.0344517849}{1.65}

x = \frac{- 0.15 - 0.0344517849}{2 \cdot 0.825} : \frac{- 0.15 - 0.0344517849}{1.65}

二次equationの解:

x = \frac{- 0.15 + 0.0344517849}{1.65}, x = \frac{- 0.15 - 0.0344517849}{1.65}