function [f, gruposseparables] = ejemplo3(x)
f(1,1) = -x(1) - x(3) - x(5);                                   
f(2,1) = -x(2) - x(4) - x(6);                                   
f(1,2) = 7.04376855061002*x(1)^(14/23)*x(2)^(9/23) + 3.67531862634635*x(5)^0.7*x(6)^0.3; 
f(2,2) = 0.64549722436790*x(3)^0.5*x(4)^ 0.5;                            
gruposseparables = [2, 2, 2];
