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受欢迎的代数 >

solvefor x,z^2+4y^2-4x^2=0

解答

求解

x, z^{2} + 4 y^{2} - 4 x^{2} = 0

解答

x = \frac{z ^{2} + 4 y ^{2}}{2}, x = - \frac{z ^{2} + 4 y ^{2}}{2}

求解步骤

z^{2} + 4 y^{2} - 4 x^{2} = 0

将

z^{2}

到右边

4 y^{2} - 4 x^{2} = - z^{2}

将

4 y^{2}

到右边

- 4 x^{2} = - z^{2} - 4 y^{2}

两边除以

- 4

x^{2} = - \frac{- z ^{2} - 4 y ^{2}}{4}

对于

x^{2} = f (a)

解为

x = f (a), - f (a)

x = - \frac{- z ^{2} - 4 y ^{2}}{4}, x = - - \frac{- z ^{2} - 4 y ^{2}}{4}

化简

- \frac{- z ^{2} - 4 y ^{2}}{4} : \frac{z ^{2} + 4 y ^{2}}{2}

化简

- - \frac{- z ^{2} - 4 y ^{2}}{4} : - \frac{z ^{2} + 4 y ^{2}}{2}

x = \frac{z ^{2} + 4 y ^{2}}{2}, x = - \frac{z ^{2} + 4 y ^{2}}{2}

作图

流行的例子

3 r^{2} = 4 r - 1

z^{2} + 4 z + 1 = 0

x^{2} + 7 x - 9 = 0

(x + 5) (2 x - 1) = 0

2 x^{2} - 6 x = - 1