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受欢迎的代数 >

0=-3x^2+x-4

解答

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

解答

x = \frac{1}{6} - i \frac{47}{6}, x = \frac{1}{6} + i \frac{47}{6}

求解步骤

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

交换两边

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

使用求根公式求解

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

化简

1^{2} - 4 (- 3) (- 4) : 47 i

x_{1, 2} = \frac{- 1 \pm 47 i}{2 ( - 3 )}

将解分隔开

x_{1} = \frac{- 1 + 47 i}{2 ( - 3 )}, x_{2} = \frac{- 1 - 47 i}{2 ( - 3 )}

x = \frac{- 1 + 47 i}{2 ( - 3 )} : \frac{1}{6} - i \frac{47}{6}

x = \frac{- 1 - 47 i}{2 ( - 3 )} : \frac{1}{6} + i \frac{47}{6}

二次方程组的解是:

x = \frac{1}{6} - i \frac{47}{6}, x = \frac{1}{6} + i \frac{47}{6}

作图

流行的例子

4 = 4 - x^{2}

72 + r < - 432

s im pl i f y 16 + 8

7 - x = - 4

因式分解 36y^4-121

f a c t or 36 y^{4} - 121