Question

Simplifique as seguintes expressões algébricas: (registre todo o desenvolvimento)

a) 4ay – 12a – 18a – 14ay

b) (m – 6) – 4 m + 3

c) –(y – 3) + 8y + 12 =

d) x – 5 + 2x – 16 – 3x =

e) 7c + 4 – 8 – 3c + 10x =

f) 6 · (2 – d) =

Answer 1

Resposta:

a) 4ay - 12a - 1a - 14ay → - 10ay - 30a → -10a.(y + 3)

b) (m - 6) - 4m + 3 → -3m -3  → -3.(m + 1)

c) -(y - 3) + 8y + 12 → -y +3 +8y + 12 → 7y + 15

d) x - 5 + 2x - 16 - 3x → 21

e) 7c + 4 - 8 - 3c + 10x → 4c - 4 + 10x → 2.(5x + 2c - 2)

f) 6.(2 - d)    ·