equation - optimization of constrained problems with three variables in matlab -


i have equation 

f(x) = (x3+2).x1.x2^x2

subject 

g(x) = 1-(x2.x2.x3)/71785.x1^4 <= 0

where 0.05 <= x1 <= 2,0.25<=1.3, , 2<=x3<=15

how solve 3 variables different interval of values ?


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