Question

Simplifique as expressões
a) (x + 1) + (x + 2y
b) (2x + 1) + (3x + 1)?
c c) 5x (2x + 3y
d) (x + 5) x(x + 3)​

Answer 1

Resposta:

a) (x + 1) + (x + 2y) =  

x + 1 + x + 2y

2x + 1 +2y

b) (2x + 1) + (3x + 1) =

2x + 1 + 3x + 1

5x + 2

c) 5x (2x + 3y) =

5x . 2x + 5x . 3y

10x² + 15xy

d) (x + 5) x (x + 3) =

x . x + 3x + 5x . 3

x² + 3x + 5x + 15

x² + 8x + 15