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受欢迎的代数 >

solvefor x,(x^2)/(25)-(y^2)/(16)=0

解答

求解

x, \frac{x ^{2}}{25} - \frac{y ^{2}}{16} = 0

解答

x = \frac{5 y}{4}, x = - \frac{5 y}{4}

求解步骤

\frac{x ^{2}}{25} - \frac{y ^{2}}{16} = 0

将

\frac{y ^{2}}{16}

到右边

\frac{x ^{2}}{25} = \frac{y ^{2}}{16}

在两边乘以

25

x^{2} = \frac{25 y ^{2}}{16}

对于

x^{2} = f (a)

解为

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

x = \frac{25 y ^{2}}{16}, x = - \frac{25 y ^{2}}{16}

化简

\frac{25 y ^{2}}{16} : \frac{5 y}{4}

化简

- \frac{25 y ^{2}}{16} : - \frac{5 y}{4}

x = \frac{5 y}{4}, x = - \frac{5 y}{4}

作图

流行的例子

solvefor x,8x^2+4xy+5y^2+2y-14=0

so l v e f or x, 8 x^{2} + 4 x y + 5 y^{2} + 2 y - 14 = 0

3x^2+3x-8=2x^2+x+7

3 x^{2} + 3 x - 8 = 2 x^{2} + x + 7

x^{2} - 3 x = - 4

x^{2} - 3 x = 2 x

5 x^{2} + 40 = - 60