Question

c) (x + 2) + (2x + 5) =
d) (2x2 - x + 3) + (-x2 - X - 5) =
e) X2 + 7x + 10) + (8x2 - 5x + 12) =
f) (-2x2 + 4x - 12) + (7x + x2) =​

Answer 1

Resposta:

Explicação passo-a-passo:

C) (X + 2) + (2x + 5)= 0=0

16-12-4=20-15-5

4•(4-3-1)=5•(4-3-1)

4=5

2+2=5