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受欢迎的代数 >

6m^2+13m-5=0

解答

6 m^{2} + 13 m - 5 = 0

解答

m = \frac{1}{3}, m = - \frac{5}{2}

+1

十进制

m = 0.33333 \dots, m = - 2.5

求解步骤

6 m^{2} + 13 m - 5 = 0

使用求根公式求解

m_{1, 2} = \frac{- 13 \pm 1 3 ^{2} - 4 \cdot 6 ( - 5 )}{2 \cdot 6}

1 3^{2} - 4 \cdot 6 (- 5) = 17

m_{1, 2} = \frac{- 13 \pm 17}{2 \cdot 6}

将解分隔开

m_{1} = \frac{- 13 + 17}{2 \cdot 6}, m_{2} = \frac{- 13 - 17}{2 \cdot 6}

m = \frac{- 13 + 17}{2 \cdot 6} : \frac{1}{3}

m = \frac{- 13 - 17}{2 \cdot 6} : - \frac{5}{2}

二次方程组的解是:

m = \frac{1}{3}, m = - \frac{5}{2}

作图

流行的例子

x^2+2.21x+1.21=0

x^{2} + 2.21 x + 1.21 = 0

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39y^2-148y+132=0

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