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人気のある代数 >

8x^2-18x=0

解

8 x^{2} - 18 x = 0

解

x = \frac{9}{4}, x = 0

+1

十進法表記

x = 2.25, x = 0

解答ステップ

8 x^{2} - 18 x = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 18 ) \pm ( - 18 ) ^{2} - 4 \cdot 8 \cdot 0}{2 \cdot 8}

(- 18)^{2} - 4 \cdot 8 \cdot 0 = 18

x_{1, 2} = \frac{- ( - 18 ) \pm 18}{2 \cdot 8}

解を分離する

x_{1} = \frac{- ( - 18 ) + 18}{2 \cdot 8}, x_{2} = \frac{- ( - 18 ) - 18}{2 \cdot 8}

x = \frac{- ( - 18 ) + 18}{2 \cdot 8} : \frac{9}{4}

x = \frac{- ( - 18 ) - 18}{2 \cdot 8} : 0

二次equationの解:

x = \frac{9}{4}, x = 0

グラフ

人気の例

(2x+1)^2+(3x+1)^2+2(2x+1)(3x-1)=1

(2 x + 1)^{2} + (3 x + 1)^{2} + 2 (2 x + 1) (3 x - 1) = 1

x^{2} + 2 x + 3 = - 2 x + 3

0=-1/2 x^2+850x

0 = - \frac{1}{2} x^{2} + 850 x

p^{2} - 2 p - 4 = 0

x^{2} - 4 = x - 2