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受欢迎的代数 >

-3x^2+6x=4

解答

- 3 x^{2} + 6 x = 4

解答

x = 1 - i \frac{3}{3}, x = 1 + i \frac{3}{3}

求解步骤

- 3 x^{2} + 6 x = 4

将

4

para o lado esquerdo

- 3 x^{2} + 6 x - 4 = 0

使用求根公式求解

x_{1, 2} = \frac{- 6 \pm 6 ^{2} - 4 ( - 3 ) ( - 4 )}{2 ( - 3 )}

化简

6^{2} - 4 (- 3) (- 4) : 23 i

x_{1, 2} = \frac{- 6 \pm 2 3 i}{2 ( - 3 )}

将解分隔开

x_{1} = \frac{- 6 + 2 3 i}{2 ( - 3 )}, x_{2} = \frac{- 6 - 2 3 i}{2 ( - 3 )}

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

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

二次方程组的解是:

x = 1 - i \frac{3}{3}, x = 1 + i \frac{3}{3}

作图

流行的例子

7 n^{2} - 19 = 5 n

(x + 7) (x + 5) = 3

因式分解 6x^2-7x-3=0

f a c t or 6 x^{2} - 7 x - 3 = 0

x (x - 6) = - 3

quadraticformula x^2-8x+15=0

q u a d r a t i c f or m u l a x^{2} - 8 x + 15 = 0