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 January 10th, 2017, 06:25 AM #1 Newbie   Joined: Jan 2017 From: Earth Posts: 1 Thanks: 0 Indices 6t^(-1/3)-t^(1/3)=5 I need a step by step guide on how to solve for "t".
 January 10th, 2017, 06:47 AM #2 Member   Joined: Dec 2016 From: USA Posts: 46 Thanks: 11 The key step is an initial substitution. Replace $t^{1/3}$ by a new variable, $u$ say. Then $t^{-1/3}$, is what, in terms of $u$? After the replacements, solve the new equation for $u$. Once you have values for $u$, solve $t^{1/3}=u$ for $t$. Voilà! Last edited by skipjack; January 10th, 2017 at 09:58 AM.

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