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受欢迎的代数 >

solvefor x,y^2=2p(x)x

解答

求解

x, y^{2} = 2 p (x) x

解答

x = \frac{y}{2 p}, x = - \frac{y}{2 p}; p \neq = 0

求解步骤

y^{2} = 2 p (x) x

交换两边

2 p xx = y^{2}

化简

2 p x^{2} = y^{2}

两边除以

2 p; p \neq = 0

\frac{2 p x ^{2}}{2 p} = \frac{y ^{2}}{2 p}; p \neq = 0

x^{2} = \frac{y ^{2}}{2 p}; p \neq = 0

对于

x^{2} = f (a)

解为

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

x = \frac{y ^{2}}{2 p}, x = - \frac{y ^{2}}{2 p}; p \neq = 0

化简

\frac{y ^{2}}{2 p} : \frac{y}{2 p}

化简

- \frac{y ^{2}}{2 p} : - \frac{y}{2 p}

x = \frac{y}{2 p}, x = - \frac{y}{2 p}; p \neq = 0

作图

流行的例子

solvefor y,-2x+3y=14

so l v e f or y, - 2 x + 3 y = 14

4/11 x+1/4 = 1/8

\frac{4}{11} x + \frac{1}{4} = \frac{1}{8}

- n = 4

solvefor y,2y=-1x-8

so l v e f or y, 2 y = - 1 x - 8

97 - 2 x = 8 x + 7