SOLUTION: x^2/3+7x^1/3+12=0

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Question 358033: x^2/3+7x^1/3+12=0
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Substitute, let u=x%5E%281%2F3%29
u%5E2=x%5E%282%2F3%29
u%5E2%2B7u%2B12=0
%28u%2B4%29%28u%2B3%29=0
Two solutions:
u%2B4=0
u=-4
x%5E%281%2F3%29=-4
highlight%28x=-64%29
.
.
.
u%2B3=0
u=-3
x%5E%281%2F3%29=-3
highlight%28x=-27%29