The expression as actually printed is ∛196-∛64-√(10^2). Now ∛64=4, √(10^2)=10, while ∛196≈5.81. Therefore the result is approximately 5.81-4-10=-8.19, which is not 0, 4 or 10. The question was probably intended to print √(196). That altered version would give 14-4-10=0.