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受欢迎的代数 >

x^2-960x+86000=0

解答

x^{2} - 960 x + 86000 = 0

解答

x = 860, x = 100

求解步骤

x^{2} - 960 x + 86000 = 0

使用求根公式求解

x_{1, 2} = \frac{- ( - 960 ) \pm ( - 960 ) ^{2} - 4 \cdot 1 \cdot 86000}{2 \cdot 1}

(- 960)^{2} - 4 \cdot 1 \cdot 86000 = 760

x_{1, 2} = \frac{- ( - 960 ) \pm 760}{2 \cdot 1}

将解分隔开

x_{1} = \frac{- ( - 960 ) + 760}{2 \cdot 1}, x_{2} = \frac{- ( - 960 ) - 760}{2 \cdot 1}

x = \frac{- ( - 960 ) + 760}{2 \cdot 1} : 860

x = \frac{- ( - 960 ) - 760}{2 \cdot 1} : 100

二次方程组的解是:

x = 860, x = 100

作图

流行的例子

x^{2} + 17 x - 22 = 0

x^{2} - 7 x = - 9

x^{2} - 7 x = - 2

2 z^{2} + 8 z + 8 = 0

solvefor x,x^2-9x=0

so l v e f or x, x^{2} - 9 x = 0