Lagrange s Multiplier

Objective: Let us consider the given function asf(x,y)= 5-(x-2)^2-2(y-1)^2 And Constraint asg(x,y)= x+4y-3So as per mentioned we can use Lagrange Multiplier to find maximum or minimum value of function.So we can apply f(x,y) as f(x,y,lambda). Results -