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人気のある代数 >

0.112=0.0418+0.0644x-0.00141x^2

解

0.112 = 0.0418 + 0.0644 x - 0.00141 x^{2}

解

x = \frac{0.0644 - 0.003751432}{0.00282}, x = \frac{0.0644 + 0.003751432}{0.00282}

+1

十進法表記

x = 1.11739 \dots, x = 44.55635 \dots

解答ステップ

0.112 = 0.0418 + 0.0644 x - 0.00141 x^{2}

辺を交換する

0.0418 + 0.0644 x - 0.00141 x^{2} = 0.112

0.112

を左側に移動します

- 0.00141 x^{2} + 0.0644 x - 0.0702 = 0

解くとthe二次式

x_{1, 2} = \frac{- 0.0644 \pm 0.064 4 ^{2} - 4 ( - 0.00141 ) ( - 0.0702 )}{2 ( - 0.00141 )}

0.064 4^{2} - 4 (- 0.00141) (- 0.0702) = 0.003751432

x_{1, 2} = \frac{- 0.0644 \pm 0.003751432}{2 ( - 0.00141 )}

解を分離する

x_{1} = \frac{- 0.0644 + 0.003751432}{2 ( - 0.00141 )}, x_{2} = \frac{- 0.0644 - 0.003751432}{2 ( - 0.00141 )}

x = \frac{- 0.0644 + 0.003751432}{2 ( - 0.00141 )} : \frac{0.0644 - 0.003751432}{0.00282}

x = \frac{- 0.0644 - 0.003751432}{2 ( - 0.00141 )} : \frac{0.0644 + 0.003751432}{0.00282}

二次equationの解:

x = \frac{0.0644 - 0.003751432}{0.00282}, x = \frac{0.0644 + 0.003751432}{0.00282}

グラフ

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