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人気のある代数 >

-3x^2-5x=1

解

- 3 x^{2} - 5 x = 1

解

x = - \frac{5 + 13}{6}, x = - \frac{5 - 13}{6}

+1

十進法表記

x = - 1.43425 \dots, x = - 0.23240 \dots

解答ステップ

- 3 x^{2} - 5 x = 1

1

を左側に移動します

- 3 x^{2} - 5 x - 1 = 0

解くとthe二次式

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

(- 5)^{2} - 4 (- 3) (- 1) = 13

x_{1, 2} = \frac{- ( - 5 ) \pm 13}{2 ( - 3 )}

解を分離する

x_{1} = \frac{- ( - 5 ) + 13}{2 ( - 3 )}, x_{2} = \frac{- ( - 5 ) - 13}{2 ( - 3 )}

x = \frac{- ( - 5 ) + 13}{2 ( - 3 )} : - \frac{5 + 13}{6}

x = \frac{- ( - 5 ) - 13}{2 ( - 3 )} : - \frac{5 - 13}{6}

二次equationの解:

x = - \frac{5 + 13}{6}, x = - \frac{5 - 13}{6}

グラフ

人気の例

A(X)=X^2+pi((1-4X)/2)^2

A (X) = X^{2} + π (\frac{1 - 4 X}{2})^{2}

9 X^{2} - 18 X = 0

5 x^{2} + x - \frac{1}{4} = 0

solvefor x,3x^2-2x^2y^2=y^4

so l v e f or x, 3 x^{2} - 2 x^{2} y^{2} = y^{4}

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