I have attached a file. I tried to solve it, but I didn't do it right. Can you provide a solution with all the steps?

62f 62f 62f The threedimensional Laplace equation 2 + y + 2 = 0 is satised by steadystate temperature distributions T = f(x,y,z) in space, by gravitational potentials, and by ax dz electrostatic potentials. Show that the function satises the threedimensional Laplace equation. f(X,y,z) : (X2 +y2 +22) 1l3 Find the second-order partial derivatives of f(x,y,z) with respect to x, y, and 2, respectively. 7 3 +52 x2+y2+22) (Simplify your answers. Use positive exponents only.)