RECUPERAÇÃO – MATEMÁTICA -1ª FASE

EXERCÍCIOS

1) Resolver os seguintes produtos. Use a regra estudada em sala de aula.

a) (x + 2) (x + 3)                                                       i) (x + 4) (x + 5)

b) (x + 3) (x + 4)                                                       j) (x + 4) (x + 6)

c) (x + 3) (x + 5)                                                       k) (x + 4) (x + 7)

d) (x + 3) (x + 6)                                                       l) (x + 4) (x + 8)

e) (x + 3) (x + 7)                                                       m) (x – 3) (x – 2)

f) (x + 3) (x + 8)                                                        n) (x – 5) (x – 6)

g) (x + 3) (x + 9)                                                       o) (x – 6) (x + 8)

h) (x + 3) (x + 10)                                                     p) (x + 10) (x – 7)

2)Desenvolva as seguintes expressões algébricas:

a) x² + 5x + 6 – [(x + 2) (x + 3)] + 1

b) x² + 9x + 18 – [(x + 3) (x + 6)] + 2

c) [(x + 4) (x + 5)] + [(x – 4) (x – 5)] – x² - 37



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