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人気のある代数 >

x^2-23.5x-1.75=0

解

x^{2} - 23.5 x - 1.75 = 0

解

x = \frac{47 + 2237}{4}, x = \frac{47 - 2237}{4}

+1

十進法表記

x = 23.57423 \dots, x = - 0.07423 \dots

解答ステップ

x^{2} - 23.5 x - 1.75 = 0

以下で両辺を乗じる:

100

100 x^{2} - 2350 x - 175 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 2350 ) \pm ( - 2350 ) ^{2} - 4 \cdot 100 ( - 175 )}{2 \cdot 100}

(- 2350)^{2} - 4 \cdot 100 (- 175) = 502237

x_{1, 2} = \frac{- ( - 2350 ) \pm 50 2237}{2 \cdot 100}

解を分離する

x_{1} = \frac{- ( - 2350 ) + 50 2237}{2 \cdot 100}, x_{2} = \frac{- ( - 2350 ) - 50 2237}{2 \cdot 100}

x = \frac{- ( - 2350 ) + 50 2237}{2 \cdot 100} : \frac{47 + 2237}{4}

x = \frac{- ( - 2350 ) - 50 2237}{2 \cdot 100} : \frac{47 - 2237}{4}

二次equationの解:

x = \frac{47 + 2237}{4}, x = \frac{47 - 2237}{4}

グラフ

人気の例

x^2-9=0,(-3,-1,1,3)

x^{2} - 9 = 0, (- 3, - 1, 1, 3)

x^{2} + 7 x = - 8

x*0.45+(-(x^2)/(2(-8.5)))=50

x \cdot 0.45 + (- \frac{x ^{2}}{2 ( - 8.5 )}) = 50

solvefor x,-36(180y^4-36y^2x+x^2)=0

so l v e f or x, - 36 (180 y^{4} - 36 y^{2} x + x^{2}) = 0

5 n^{2} = 125