Question

Resolva:
a - (+4) . (-8) + (+4).(+10)=
B- (-2) .(-12)+(+20).(-2)
C-(-10).(+5)+(5).(-3)
D-(+9).(-3)+(-13).(-3)
E (+6).(-1)+(-3).(+6)+(+7).(+6)
F (-9).(-4)+(-9).(-3)+(+9).(-9)

Answer 1

A) = 72
B) = -16
C) = -65
D) = 12
E) = 18
F) = -145