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人気のある代数 >

8x^2-10x+2=0

解

8 x^{2} - 10 x + 2 = 0

解

x = 1, x = \frac{1}{4}

+1

十進法表記

x = 1, x = 0.25

解答ステップ

8 x^{2} - 10 x + 2 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 10 ) \pm ( - 10 ) ^{2} - 4 \cdot 8 \cdot 2}{2 \cdot 8}

(- 10)^{2} - 4 \cdot 8 \cdot 2 = 6

x_{1, 2} = \frac{- ( - 10 ) \pm 6}{2 \cdot 8}

解を分離する

x_{1} = \frac{- ( - 10 ) + 6}{2 \cdot 8}, x_{2} = \frac{- ( - 10 ) - 6}{2 \cdot 8}

x = \frac{- ( - 10 ) + 6}{2 \cdot 8} : 1

x = \frac{- ( - 10 ) - 6}{2 \cdot 8} : \frac{1}{4}

二次equationの解:

x = 1, x = \frac{1}{4}

グラフ

人気の例

solvefor x,(x-3)^2+(y+5)^2+z^2=81

so l v e f or x, (x - 3)^{2} + (y + 5)^{2} + z^{2} = 81

3(2x+5)^2=(2x-5)^2+10

3 (2 x + 5)^{2} = (2 x - 5)^{2} + 10

(z + 4)^{2} = 7

15 x^{2} + 8 x - 100 = 0

3v^2+12v-25=-10

3 v^{2} + 12 v - 25 = - 10