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受欢迎的代数 >

solvefor x,zx^2-x+5-3z=0

解答

求解

x, z x^{2} - x + 5 - 3 z = 0

解答

x = \frac{1 + 1 - 4 z ( 5 - 3 z )}{2 z}, x = \frac{1 - 1 - 4 z ( 5 - 3 z )}{2 z}; z \neq = 0

求解步骤

z x^{2} - x + 5 - 3 z = 0

使用求根公式求解

x_{1, 2} = \frac{- ( - 1 ) \pm ( - 1 ) ^{2} - 4 z ( 5 - 3 z )}{2 z}

化简

(- 1)^{2} - 4 z (5 - 3 z) : 1 - 4 z (5 - 3 z)

x_{1, 2} = \frac{- ( - 1 ) \pm 1 - 4 z ( 5 - 3 z )}{2 z}; z \neq = 0

将解分隔开

x_{1} = \frac{- ( - 1 ) + 1 - 4 z ( 5 - 3 z )}{2 z}, x_{2} = \frac{- ( - 1 ) - 1 - 4 z ( 5 - 3 z )}{2 z}

x = \frac{- ( - 1 ) + 1 - 4 z ( 5 - 3 z )}{2 z} : \frac{1 + 1 - 4 z ( 5 - 3 z )}{2 z}

x = \frac{- ( - 1 ) - 1 - 4 z ( 5 - 3 z )}{2 z} : \frac{1 - 1 - 4 z ( 5 - 3 z )}{2 z}

二次方程组的解是:

x = \frac{1 + 1 - 4 z ( 5 - 3 z )}{2 z}, x = \frac{1 - 1 - 4 z ( 5 - 3 z )}{2 z}; z \neq = 0

作图

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