Question

Efetue
A)2ab.4a
B)-5a²(ab)
C)-5.15a²b
D)-9ײy.(-5×y²
Me ajude

Answer 1

Resposta:

A) 8a².b

b)-5a³-5a²b

c)75a²b

D)45x³.y³

Answer 2

a)2ab.4a

1 1

8a ba

1+1

8a b

2

=8a b

só sei essa