Question

(1/2a+3)2
(3x-1/6)2
(1+x/3)(1-x/3)
(M/2+5/3)(m/2-5/3)

Answer 1

Assunto:  produtos notáveis.

a) (a/2 + 3)² = a²/4 + 3a + 9

b) (3x - 1/6)² = 9x² - x + 1/36

c) (1 + x/3) * (1 - x/3)  = 1 - x²/9

d) (m/2 + 5/3) * (m/2 - 5/3)  = m²/4 - 25/9