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人気のある代数 >

x^2-87x+1180=0

解

x^{2} - 87 x + 1180 = 0

解

x = \frac{87 + 2849}{2}, x = \frac{87 - 2849}{2}

+1

十進法表記

x = 70.18801 \dots, x = 16.81198 \dots

解答ステップ

x^{2} - 87 x + 1180 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 87 ) \pm ( - 87 ) ^{2} - 4 \cdot 1 \cdot 1180}{2 \cdot 1}

(- 87)^{2} - 4 \cdot 1 \cdot 1180 = 2849

x_{1, 2} = \frac{- ( - 87 ) \pm 2849}{2 \cdot 1}

解を分離する

x_{1} = \frac{- ( - 87 ) + 2849}{2 \cdot 1}, x_{2} = \frac{- ( - 87 ) - 2849}{2 \cdot 1}

x = \frac{- ( - 87 ) + 2849}{2 \cdot 1} : \frac{87 + 2849}{2}

x = \frac{- ( - 87 ) - 2849}{2 \cdot 1} : \frac{87 - 2849}{2}

二次equationの解:

x = \frac{87 + 2849}{2}, x = \frac{87 - 2849}{2}

グラフ

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