Show work please

D Question 9 X Find the x-values (if any) at which f(x) = x 2+ 2x is not continuous O f(x) is continuous for all real x. O f(x) is not continuous at x = 0. -2 and both the discontinuities are nonremovable. O f(x) is not continuous at x = 0. -2 and f (x) has a removable discontinuity at x = 0 O f(x) is not continuous at X - -2 and / (X) has a removable discontinuity at X - -2. Of(x) is not continuous at x = 0 and f (x) has a removable discontinuity at x = 0