Respuesta :

(4•-1•-2^-2•2)(5•-1^-2•-2^3•2^-2)

(4•-1•1/4•2)(5•1•-8•1/4)
(-4•1/4•2)(5•-8•1/4)
(-2)(-40/4)
80/4 = 20

The answer is 20