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受欢迎的 Geometry >

solvefor x,x^2=8-r(x)^2

解答

求解

x, x^{2} = 8 - r (x)^{2}

解答

x = \frac{2 2}{1 + r}, x = - \frac{2 2}{1 + r}; r \neq = - 1

求解步骤

x^{2} = 8 - r x^{2}

将

r x^{2}

para o lado esquerdo

x^{2} + r x^{2} = 8

分解

x^{2} + r x^{2} : x^{2} (1 + r)

x^{2} (1 + r) = 8

两边除以

1 + r; r \neq = - 1

x^{2} = \frac{8}{1 + r}; r \neq = - 1

对于

x^{2} = f (a)

解为

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

x = \frac{8}{1 + r}, x = - \frac{8}{1 + r}; r \neq = - 1

化简

\frac{8}{1 + r} : \frac{2 2}{1 + r}

化简

- \frac{8}{1 + r} : - \frac{2 2}{1 + r}

x = \frac{2 2}{1 + r}, x = - \frac{2 2}{1 + r}; r \neq = - 1

作图

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