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受欢迎的代数 >

(x)=1.2x^2-744x+134191

解答

(x) = 1.2 x^{2} - 744 x + 134191

解答

x = \frac{3725}{12} + i \frac{7 45455}{12}, x = \frac{3725}{12} - i \frac{7 45455}{12}

求解步骤

(x) = 1.2 x^{2} - 744 x + 134191

在两边乘以

10

x \cdot 10 = 12 x^{2} - 7440 x + 1341910

交换两边

12 x^{2} - 7440 x + 1341910 = x \cdot 10

将

x 10

para o lado esquerdo

12 x^{2} - 7450 x + 1341910 = 0

使用求根公式求解

x_{1, 2} = \frac{- ( - 7450 ) \pm ( - 7450 ) ^{2} - 4 \cdot 12 \cdot 1341910}{2 \cdot 12}

化简

(- 7450)^{2} - 4 \cdot 12 \cdot 1341910 : 1445455 i

x_{1, 2} = \frac{- ( - 7450 ) \pm 14 45455 i}{2 \cdot 12}

将解分隔开

x_{1} = \frac{- ( - 7450 ) + 14 45455 i}{2 \cdot 12}, x_{2} = \frac{- ( - 7450 ) - 14 45455 i}{2 \cdot 12}

x = \frac{- ( - 7450 ) + 14 45455 i}{2 \cdot 12} : \frac{3725}{12} + i \frac{7 45455}{12}

x = \frac{- ( - 7450 ) - 14 45455 i}{2 \cdot 12} : \frac{3725}{12} - i \frac{7 45455}{12}

二次方程组的解是:

x = \frac{3725}{12} + i \frac{7 45455}{12}, x = \frac{3725}{12} - i \frac{7 45455}{12}

作图

流行的例子

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