求助:用matlab 解方程组,急急!

olimpical

f(x1,x2)=2x1^2+5429.445+2x2^2+40000-104.206x1-400x2-2x1x2)+240[3249+(180-x2)^2]^(1/2)+4[3249+(180-x2)^2]+240[3249+(180-x1)^2]^(1/2)+4[3249+(180-x1)^2];

分别对x1,x2求偏导,让其偏导等于0;解得两个方程.即
和
拜托大家了!