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受欢迎的代数 >

-3x^2-11x+4=0

解答

- 3 x^{2} - 11 x + 4 = 0

解答

x = - 4, x = \frac{1}{3}

+1

十进制

x = - 4, x = 0.33333 \dots

求解步骤

- 3 x^{2} - 11 x + 4 = 0

使用求根公式求解

x_{1, 2} = \frac{- ( - 11 ) \pm ( - 11 ) ^{2} - 4 ( - 3 ) \cdot 4}{2 ( - 3 )}

(- 11)^{2} - 4 (- 3) \cdot 4 = 13

x_{1, 2} = \frac{- ( - 11 ) \pm 13}{2 ( - 3 )}

将解分隔开

x_{1} = \frac{- ( - 11 ) + 13}{2 ( - 3 )}, x_{2} = \frac{- ( - 11 ) - 13}{2 ( - 3 )}

x = \frac{- ( - 11 ) + 13}{2 ( - 3 )} : - 4

x = \frac{- ( - 11 ) - 13}{2 ( - 3 )} : \frac{1}{3}

二次方程组的解是:

x = - 4, x = \frac{1}{3}

作图

流行的例子

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