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人気のある代数 >

12=26.8116*x-1/2 9.81x^2

解

12 = 26.8116 \cdot x - \frac{1}{2} 9.81 x^{2}

解

x = \frac{53.6232 - 1933.68757 \dots}{19.62}, x = \frac{53.6232 + 1933.68757 \dots}{19.62}

+1

十進法表記

x = 0.49181 \dots, x = 4.97435 \dots

解答ステップ

12 = 26.8116 x - \frac{1}{2} \cdot 9.81 x^{2}

以下で両辺を乗じる:

2

24 = 53.6232 x - 9.81 x^{2}

辺を交換する

53.6232 x - 9.81 x^{2} = 24

24

を左側に移動します

53.6232 x - 9.81 x^{2} - 24 = 0

標準的な形式で書く

a x^{2} + b x + c = 0

- 9.81 x^{2} + 53.6232 x - 24 = 0

解くとthe二次式

x_{1, 2} = \frac{- 53.6232 \pm 53.623 2 ^{2} - 4 ( - 9.81 ) ( - 24 )}{2 ( - 9.81 )}

53.623 2^{2} - 4 (- 9.81) (- 24) = 1933.68757 \dots

x_{1, 2} = \frac{- 53.6232 \pm 1933.68757 \dots}{2 ( - 9.81 )}

解を分離する

x_{1} = \frac{- 53.6232 + 1933.68757 \dots}{2 ( - 9.81 )}, x_{2} = \frac{- 53.6232 - 1933.68757 \dots}{2 ( - 9.81 )}

x = \frac{- 53.6232 + 1933.68757 \dots}{2 ( - 9.81 )} : \frac{53.6232 - 1933.68757 \dots}{19.62}

x = \frac{- 53.6232 - 1933.68757 \dots}{2 ( - 9.81 )} : \frac{53.6232 + 1933.68757 \dots}{19.62}

二次equationの解:

x = \frac{53.6232 - 1933.68757 \dots}{19.62}, x = \frac{53.6232 + 1933.68757 \dots}{19.62}

グラフ

人気の例

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