solvefor x,y^n=2x^2

解答

求解

x, y^{n} = 2 x^{2}

x = \frac{y ^{n}}{2}, x = - \frac{y ^{n}}{2}

求解步骤

y^{n} = 2 x^{2}

交换两边

2 x^{2} = y^{n}

两边除以

2

x^{2} = \frac{y ^{n}}{2}

对于

x^{2} = f (a)

解为

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

x = \frac{y ^{n}}{2}, x = - \frac{y ^{n}}{2}

(u + 1) (u^{2} - 2) = (u + 3)^{3}

4.9 x^{2} = 19.6

- x^{3} + (x - 5)^{3} + 1115 = 0

\frac{2}{7} \cdot x^{2} + \frac{3}{4} \cdot x = \frac{1}{4} \cdot x

so l v e f or x, \frac{x ^{2}}{9} - \frac{y ^{2}}{16} = \frac{z}{4}