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受欢迎的代数 >

-6x^2+x+35=0

解答

- 6 x^{2} + x + 35 = 0

解答

x = - \frac{7}{3}, x = \frac{5}{2}

+1

十进制

x = - 2.33333 \dots, x = 2.5

求解步骤

- 6 x^{2} + x + 35 = 0

使用求根公式求解

x_{1, 2} = \frac{- 1 \pm 1 ^{2} - 4 ( - 6 ) \cdot 35}{2 ( - 6 )}

1^{2} - 4 (- 6) \cdot 35 = 29

x_{1, 2} = \frac{- 1 \pm 29}{2 ( - 6 )}

将解分隔开

x_{1} = \frac{- 1 + 29}{2 ( - 6 )}, x_{2} = \frac{- 1 - 29}{2 ( - 6 )}

x = \frac{- 1 + 29}{2 ( - 6 )} : - \frac{7}{3}

x = \frac{- 1 - 29}{2 ( - 6 )} : \frac{5}{2}

二次方程组的解是:

x = - \frac{7}{3}, x = \frac{5}{2}

作图

流行的例子

7 x^{2} - x - 66 = 0

400-x^2= x/(60)+5

400 - x^{2} = \frac{x}{60} + 5

1640.8=0.68*2.14*100*x*(9.5-0.4*x)

1640.8 = 0.68 \cdot 2.14 \cdot 100 \cdot x \cdot (9.5 - 0.4 \cdot x)

λ^{2} - 2 λ + 1 = 0

4 x^{2} + 6 x = 12