Question

calcular o valor das expressões algébricas para x = 3 e y = 2 :

a)2x - y =

b)3x + 2y =

c)4x - 3y - 4 =

d)2xy - x =

e)3xy - y =

f)4xy - x - y = ​

Answer 1

Resposta:

a)2x-y=6-2=4

b)3x+2y=9+4=13

c)4x-3y-4=12-6-4=2

d)2xy-x=6.2-3=9

e)3xy-y=9.2-2=16

f)4xy-x-y=12.2-3-2=19

obs: n tenho crtz das letras (d),(e),(f).