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人気のある代数 >

266=0.68100X*1.79(4.75-0.4X)

解

266 = 0.68 \cdot 100 \cdot X \cdot 1.79 \cdot (4.75 - 0.4 \cdot X)

解

X = \frac{578.17 - 282476.5169}{97.376}, X = \frac{578.17 + 282476.5169}{97.376}

+1

十進法表記

X = 0.47942 \dots, X = 11.39557 \dots

解答ステップ

266 = 0.68 \cdot 100 X \cdot 1.79 (4.75 - 0.4 X)

拡張

0.68 \cdot 100 X \cdot 1.79 (4.75 - 0.4 X) : 578.17 X - 48.688 X^{2}

266 = 578.17 X - 48.688 X^{2}

辺を交換する

578.17 X - 48.688 X^{2} = 266

266

を左側に移動します

578.17 X - 48.688 X^{2} - 266 = 0

標準的な形式で書く

a x^{2} + b x + c = 0

- 48.688 X^{2} + 578.17 X - 266 = 0

解くとthe二次式

X_{1, 2} = \frac{- 578.17 \pm 578.1 7 ^{2} - 4 ( - 48.688 ) ( - 266 )}{2 ( - 48.688 )}

578.1 7^{2} - 4 (- 48.688) (- 266) = 282476.5169

X_{1, 2} = \frac{- 578.17 \pm 282476.5169}{2 ( - 48.688 )}

解を分離する

X_{1} = \frac{- 578.17 + 282476.5169}{2 ( - 48.688 )}, X_{2} = \frac{- 578.17 - 282476.5169}{2 ( - 48.688 )}

X = \frac{- 578.17 + 282476.5169}{2 ( - 48.688 )} : \frac{578.17 - 282476.5169}{97.376}

X = \frac{- 578.17 - 282476.5169}{2 ( - 48.688 )} : \frac{578.17 + 282476.5169}{97.376}

二次equationの解:

X = \frac{578.17 - 282476.5169}{97.376}, X = \frac{578.17 + 282476.5169}{97.376}

グラフ

人気の例

2 x^{2} + 9 - 10 = 0

- 5 x^{2} - 40 x + 45 = 0

completesquare 2x^2-8x+4

co m pl e t es q u a re 2 x^{2} - 8 x + 4

solvefor x,F=2xy^2x+(y+2yx^2)y

so l v e f or x, F = 2 x y^{2} x + (y + 2 y x^{2}) y

64 x^{2} = 121