SOLUTION: I am having some difficulties working functions which have numbers raised to fractional powers, like the following question.
Solve: x^(2/3) - 2x^(1/3) - 15 = 0
I understand u
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Solve: x^(2/3) - 2x^(1/3) - 15 = 0
I understand u
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Question 277573: I am having some difficulties working functions which have numbers raised to fractional powers, like the following question.
Solve: x^(2/3) - 2x^(1/3) - 15 = 0
I understand using a placeholder thing, reorganizing the problem, and then solving for the placeholder, but I am having problems with raising to the fractional powers while solving for X. Could you explain how please?
I got this question solved down to where u = x^(1/3) The possible solutions for u are 5, and -3. I need help solving for X now.
Thanks Answer by jim_thompson5910(35256) (Show Source):