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人気のある代数 >

-0.5x^2+50x-600=0

解

- 0.5 x^{2} + 50 x - 600 = 0

解

x = 10 (5 - 13), x = 10 (5 + 13)

+1

十進法表記

x = 13.94448 \dots, x = 86.05551 \dots

解答ステップ

- 0.5 x^{2} + 50 x - 600 = 0

以下で両辺を乗じる:

10

- 5 x^{2} + 500 x - 6000 = 0

解くとthe二次式

x_{1, 2} = \frac{- 500 \pm 50 0 ^{2} - 4 ( - 5 ) ( - 6000 )}{2 ( - 5 )}

50 0^{2} - 4 (- 5) (- 6000) = 10013

x_{1, 2} = \frac{- 500 \pm 100 13}{2 ( - 5 )}

解を分離する

x_{1} = \frac{- 500 + 100 13}{2 ( - 5 )}, x_{2} = \frac{- 500 - 100 13}{2 ( - 5 )}

x = \frac{- 500 + 100 13}{2 ( - 5 )} : 10 (5 - 13)

x = \frac{- 500 - 100 13}{2 ( - 5 )} : 10 (5 + 13)

二次equationの解:

x = 10 (5 - 13), x = 10 (5 + 13)

グラフ

人気の例

solvefor x,f(2x-1)=4x^2-4x+5

so l v e f or x, f (2 x - 1) = 4 x^{2} - 4 x + 5

8 q^{2} + 8 q - 4 = 3 q^{2}

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

solvefor x,x^2-kx+1=0

so l v e f or x, x^{2} - k x + 1 = 0

3 x^{2} + 3 x - 9 = 4 x - 7