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受欢迎的代数 >

6x^2-11x+20=2-95x

解答

6 x^{2} - 11 x + 20 = 2 - 95 x

解答

x = - 7 + 46, x = - 7 - 46

+1

十进制

x = - 0.21767 \dots, x = - 13.78232 \dots

求解步骤

6 x^{2} - 11 x + 20 = 2 - 95 x

将

95 x

para o lado esquerdo

6 x^{2} + 84 x + 20 = 2

将

2

para o lado esquerdo

6 x^{2} + 84 x + 18 = 0

使用求根公式求解

x_{1, 2} = \frac{- 84 \pm 8 4 ^{2} - 4 \cdot 6 \cdot 18}{2 \cdot 6}

8 4^{2} - 4 \cdot 6 \cdot 18 = 1246

x_{1, 2} = \frac{- 84 \pm 12 46}{2 \cdot 6}

将解分隔开

x_{1} = \frac{- 84 + 12 46}{2 \cdot 6}, x_{2} = \frac{- 84 - 12 46}{2 \cdot 6}

x = \frac{- 84 + 12 46}{2 \cdot 6} : - 7 + 46

x = \frac{- 84 - 12 46}{2 \cdot 6} : - 7 - 46

二次方程组的解是:

x = - 7 + 46, x = - 7 - 46

作图

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