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受欢迎的代数 >

6x^2+12x-94=-10

解答

6 x^{2} + 12 x - 94 = - 10

解答

x = - 1 + 15, x = - 1 - 15

+1

十进制

x = 2.87298 \dots, x = - 4.87298 \dots

求解步骤

6 x^{2} + 12 x - 94 = - 10

将

10

para o lado esquerdo

6 x^{2} + 12 x - 84 = 0

使用求根公式求解

x_{1, 2} = \frac{- 12 \pm 1 2 ^{2} - 4 \cdot 6 ( - 84 )}{2 \cdot 6}

1 2^{2} - 4 \cdot 6 (- 84) = 1215

x_{1, 2} = \frac{- 12 \pm 12 15}{2 \cdot 6}

将解分隔开

x_{1} = \frac{- 12 + 12 15}{2 \cdot 6}, x_{2} = \frac{- 12 - 12 15}{2 \cdot 6}

x = \frac{- 12 + 12 15}{2 \cdot 6} : - 1 + 15

x = \frac{- 12 - 12 15}{2 \cdot 6} : - 1 - 15

二次方程组的解是:

x = - 1 + 15, x = - 1 - 15

作图

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