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受欢迎的代数 >

solvefor x,4x^2+z^2-y^2=9

解答

求解

x, 4 x^{2} + z^{2} - y^{2} = 9

解答

x = \frac{9 - z ^{2} + y ^{2}}{2}, x = - \frac{9 - z ^{2} + y ^{2}}{2}

求解步骤

4 x^{2} + z^{2} - y^{2} = 9

将

z^{2}

到右边

4 x^{2} - y^{2} = 9 - z^{2}

将

y^{2}

到右边

4 x^{2} = 9 - z^{2} + y^{2}

两边除以

4

x^{2} = \frac{9 - z ^{2} + y ^{2}}{4}

对于

x^{2} = f (a)

解为

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

x = \frac{9 - z ^{2} + y ^{2}}{4}, x = - \frac{9 - z ^{2} + y ^{2}}{4}

化简

\frac{9 - z ^{2} + y ^{2}}{4} : \frac{9 - z ^{2} + y ^{2}}{2}

化简

- \frac{9 - z ^{2} + y ^{2}}{4} : - \frac{9 - z ^{2} + y ^{2}}{2}

x = \frac{9 - z ^{2} + y ^{2}}{2}, x = - \frac{9 - z ^{2} + y ^{2}}{2}

作图

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