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受欢迎的代数 >

14x^2-11x+10=0

解答

14 x^{2} - 11 x + 10 = 0

解答

x = \frac{11}{28} + i \frac{439}{28}, x = \frac{11}{28} - i \frac{439}{28}

求解步骤

14 x^{2} - 11 x + 10 = 0

使用求根公式求解

x_{1, 2} = \frac{- ( - 11 ) \pm ( - 11 ) ^{2} - 4 \cdot 14 \cdot 10}{2 \cdot 14}

化简

(- 11)^{2} - 4 \cdot 14 \cdot 10 : 439 i

x_{1, 2} = \frac{- ( - 11 ) \pm 439 i}{2 \cdot 14}

将解分隔开

x_{1} = \frac{- ( - 11 ) + 439 i}{2 \cdot 14}, x_{2} = \frac{- ( - 11 ) - 439 i}{2 \cdot 14}

x = \frac{- ( - 11 ) + 439 i}{2 \cdot 14} : \frac{11}{28} + i \frac{439}{28}

x = \frac{- ( - 11 ) - 439 i}{2 \cdot 14} : \frac{11}{28} - i \frac{439}{28}

二次方程组的解是:

x = \frac{11}{28} + i \frac{439}{28}, x = \frac{11}{28} - i \frac{439}{28}

作图

流行的例子

m^{2} - 8 m - 16 = - 16

x^{2} - 10 = 62

化简 (5v^4)^2*2v^3*v

s im pl i f y (5 v^{4})^{2} \cdot 2 v^{3} \cdot v

r^{2} - 8 r + 25 = 0

9 x - 7 < 38