SOLUTION: 5x^(2/3)-4=16

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Question 709448: 5x^(2/3)-4=16
Answer by Gogonati(855) About Me  (Show Source):
You can put this solution on YOUR website!
5x%5E%282%2F3%29=20
x%5E%282%2F3%29=4 Cubed both sides and get:
%28x%5E%282%2F3%29%29%5E3=4%5E3 Simplify
x%5E2=4.4%5E2 Take the square root for both sides
x=8 Check: 5.8%5E%282%2F3%29-4=16 -> 5.4-4=16 -> 20-4=16