Question

(x + 3)2/3 + 2(x + 3)1/3 - 15 = 0

Answer 1

\[\frac{2}{3}x+2 + \frac{2}{3}x+2-15 =0\]\[\frac{4}{3}x=11\]\[4x=33\]\[x=\frac{33}{4}\]

Answer 2

4(x+3)/3 =15
4(x+3)=45
4x=33
x=33/4