Question 426597
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Hi
solving
x^(2/3) - x^(1/3) - 6 = 0
Let a = x^(1/3)
 a^2 - a - 6 = 0
factoring
 (a-3)(a+2) = 0
 (a-3)= 0   a = 3  x = 27   |a = x(1/3) OR a^3 = x
 (a+2) = 0  a =-2  x = -8

CHECKING our Answers***
 9 - 3 - 6 = 0     |x = 27
 4 + 2 - 6 = 0     |x = -8