Question

se A=51-21 e B=3-44-6 calcule A.Bt

Answer 1

A= 51 - 21 =30
B= 3 - 44 = -41 - 6 = -50
A.B
30.(-50) = -1,500

Answer 2

30.(-50).t
-50t/30
t= -50/30
t= 50/30= -1,6