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人気のある代数 >

x(3(x-4))+(x-3)+(4x+2)+(2x-1)=300

解

x (3 (x - 4)) + (x - 3) + (4 x + 2) + (2 x - 1) = 300

解

x = \frac{5 + 3649}{6}, x = \frac{5 - 3649}{6}

+1

十進法表記

x = 10.90115 \dots, x = - 9.23449 \dots

解答ステップ

x (3 (x - 4)) + (x - 3) + (4 x + 2) + (2 x - 1) = 300

拡張

x (3 (x - 4)) + (x - 3) + (4 x + 2) + (2 x - 1) : 3 x^{2} - 5 x - 2

3 x^{2} - 5 x - 2 = 300

300

を左側に移動します

3 x^{2} - 5 x - 302 = 0

解くとthe二次式

x_{1, 2} = \frac{- ( - 5 ) \pm ( - 5 ) ^{2} - 4 \cdot 3 ( - 302 )}{2 \cdot 3}

(- 5)^{2} - 4 \cdot 3 (- 302) = 3649

x_{1, 2} = \frac{- ( - 5 ) \pm 3649}{2 \cdot 3}

解を分離する

x_{1} = \frac{- ( - 5 ) + 3649}{2 \cdot 3}, x_{2} = \frac{- ( - 5 ) - 3649}{2 \cdot 3}

x = \frac{- ( - 5 ) + 3649}{2 \cdot 3} : \frac{5 + 3649}{6}

x = \frac{- ( - 5 ) - 3649}{2 \cdot 3} : \frac{5 - 3649}{6}

二次equationの解:

x = \frac{5 + 3649}{6}, x = \frac{5 - 3649}{6}

グラフ

人気の例

19.2=-0.3x^2+6x

19.2 = - 0.3 x^{2} + 6 x

6.842=(2m+0.4)*(2m+0.7)

6.842 = (2 m + 0.4) \cdot (2 m + 0.7)

14 = - 4 p^{2} + 8 p + 14

11 x^{2} + 6 x + 6 = 0

completesquare 3x^2+6x-4

co m pl e t es q u a re 3 x^{2} + 6 x - 4