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人気のある代数 >

0.0493x^2-0.9621x+53.104-70=0

解

0.0493 x^{2} - 0.9621 x + 53.104 - 70 = 0

解

x = \frac{0.9621 + 4.25752761}{0.0986}, x = \frac{0.9621 - 4.25752761}{0.0986}

+1

十進法表記

x = 30.68435 \dots, x = - 11.16914 \dots

解答ステップ

0.0493 x^{2} - 0.9621 x + 53.104 - 70 = 0

改良

0.0493 x^{2} - 0.9621 x - 16.896 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 0.9621 ) \pm ( - 0.9621 ) ^{2} - 4 \cdot 0.0493 ( - 16.896 )}{2 \cdot 0.0493}

(- 0.9621)^{2} - 4 \cdot 0.0493 (- 16.896) = 4.25752761

x_{1, 2} = \frac{- ( - 0.9621 ) \pm 4.25752761}{2 \cdot 0.0493}

解を分離する

x_{1} = \frac{- ( - 0.9621 ) + 4.25752761}{2 \cdot 0.0493}, x_{2} = \frac{- ( - 0.9621 ) - 4.25752761}{2 \cdot 0.0493}

x = \frac{- ( - 0.9621 ) + 4.25752761}{2 \cdot 0.0493} : \frac{0.9621 + 4.25752761}{0.0986}

x = \frac{- ( - 0.9621 ) - 4.25752761}{2 \cdot 0.0493} : \frac{0.9621 - 4.25752761}{0.0986}

二次equationの解:

x = \frac{0.9621 + 4.25752761}{0.0986}, x = \frac{0.9621 - 4.25752761}{0.0986}

グラフ

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