Question

Determine a fórmula do termo geral dos binomios:
A) (9-a) ^7
B) (3+x/3) ^5

Answer 1

Vamos lá

a)

(9 - a)^7 = -a^7 + 63a^6 - 1701a^5 + 25515a^4 - 229635a^3 + 1240029a^2 - 3720087a + 4782969

b)

(3 + x/3)^5 = x^5/243 + (5x^4)/27 + (10x^3)/3 + 30x^2 + 135x + 243