Question

) Calcule as multiplicações:

a) (-4a) . (6ab) b) 3 . (2xy – 2)



c) (3x + 3) . (x + 5)

Answer 1

a) (-4a).6ab

=-24a²b

b) 3.(2xy-2)

=6xy-6

c) (3x+3).(x+5)=3x.x+3x.5+3.x+3.5

3x²+15x+3x+15

=3x²+18x+15

Espero ter ajudado!