Question

quanto e 4(-5)×(-1)×2×(-5)

Answer 1

Olá,

Vamos lá,

=4(-5)×(-1)×2×(-5)
=-20×(-1)×2×(-5)
=20×2×(-5)
= 40 x - 5
= - 200

Answer 2

 (-20) . (-2) . (-5)
    (-20) . (10) = -200     ok