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受欢迎的代数 >

solvefor x,y^2=8x^2

解答

求解

x, y^{2} = 8 x^{2}

解答

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

求解步骤

y^{2} = 8 x^{2}

交换两边

8 x^{2} = y^{2}

两边除以

8

x^{2} = \frac{y ^{2}}{8}

对于

x^{2} = f (a)

解为

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

x = \frac{y ^{2}}{8}, x = - \frac{y ^{2}}{8}

化简

\frac{y ^{2}}{8} : \frac{y}{2 2}

化简

- \frac{y ^{2}}{8} : - \frac{y}{2 2}

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

作图

流行的例子

s^{2} + 2 s + 26 = 0

(14*x^2)/2-8.69*4*(40.5-x)=0

\frac{14 \cdot x ^{2}}{2} - 8.69 \cdot 4 \cdot (40.5 - x) = 0

solvefor x,x^2-3x=0

so l v e f or x, x^{2} - 3 x = 0

x^{2} + b x + 1 = 0

4 x - 4 = x^{2}