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受欢迎的代数 >

6a^2+22a-8=0

解答

6 a^{2} + 22 a - 8 = 0

解答

a = \frac{1}{3}, a = - 4

+1

十进制

a = 0.33333 \dots, a = - 4

求解步骤

6 a^{2} + 22 a - 8 = 0

使用求根公式求解

a_{1, 2} = \frac{- 22 \pm 2 2 ^{2} - 4 \cdot 6 ( - 8 )}{2 \cdot 6}

2 2^{2} - 4 \cdot 6 (- 8) = 26

a_{1, 2} = \frac{- 22 \pm 26}{2 \cdot 6}

将解分隔开

a_{1} = \frac{- 22 + 26}{2 \cdot 6}, a_{2} = \frac{- 22 - 26}{2 \cdot 6}

a = \frac{- 22 + 26}{2 \cdot 6} : \frac{1}{3}

a = \frac{- 22 - 26}{2 \cdot 6} : - 4

二次方程组的解是:

a = \frac{1}{3}, a = - 4

作图

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