3^2-2*3+u=(3^3-3*8)(2)+u
3^2-2*3+u=(36-24)(2)+u
3^2-2*3+u=12(2)+u
9-2*3+u=24+u
9-6+u=24+u
3+u=24+u
3+u - 3 = 24+u - 3 (subtract 3 from both sides)
u - u = 24+u - u (subtract u from both sides)
0 = 24
this is an untrue statement, so this equation has no solution
