Question

1- Calcule o produto:

a) 2x.5x =

b) -2x.7x =

c) 4y.3y³ =

d) -3a².5ab =

e) 1y.(-5y) =

f) 4xy.5xy =​

Answer 1

Resposta:

a) 2x.5x = 10x2

b) -2x.7x = -14x²

c) 4y.3y³ =12y⁴

d) -3a².5ab =-15a³b

e) 1y.(-5y) =-5y²

f) 4xy.5xy =​=20x²y²

Answer 2

Explicação passo-a-passo:

a)2x.5x=2.5.x¹+¹=10x²

b)-2x.7x= -2.7.x¹+¹=-14x²

c)4y.3y³=4.3.y¹+³=12y⁴

d)-3a².5ab=-3.5.a²+¹.b= -15a³b

e)1y.(-5y)=1.-5.y¹+¹= -5y²

f) 4xy.5xy= 4.5.x¹+¹.y¹+¹=20x²y²