any help would be appreciated :)

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- Sep 29th 2013, 10:35 PMVendettareal root of an equation plzz help me
any help would be appreciated :)

- Sep 30th 2013, 06:05 AMzzephodRe: real root of an equation plzz help me
When $\displaystyle \varepsilon=0$ the real root is $\displaystyle -1$, so expand the root as a power series in $\displaystyle \varepsilon$ as $\displaystyle x=-1+a\varepsilon+O(\varepsilon^2)$ ...

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