Question

please find the answer urgently I mark you as brain list

Answer 1

$5( \frac{x}{x+1} )^2 - 4( \frac{x}{x+1}) - 1 = 0$

let $\frac{x}{x+1} = y$

Thus, $5y^2 + 4y - 1 = 0$

By using the quadratic equation formula, $-b (+/-) \frac{ \sqrt{b^2 - 4ac} }{2a} = x$

$a = 5, b= 4, c = -1$

$x = -1, x = 1/5$

But since it is given that $x \neq -1$

$y = \frac{1}{5}$

$\frac{x}{x+1} = y$

$\frac{x}{x+1} = \frac{1}{5}$

Cross Multiplying gets us, [tex]5x = x + 1 4x = 1 x = \frac{1}{4} [/tex]

Answer 2

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