Question

Resuelve lossiguientes ejercixios

(A) (3-c)^2

(B) (5+z)^3

Answer 1

Aplicas productos notables.

(a - b)² =
a² - 2ab + b²

(3 - c)² =
(3)² - 2(3)(c) + c² =
9 - 6c + c²


Aplicas.
(a + b)³ =
a³ + 3a²b + 3ab² + b³

(5 + z)³ =
5³ + 3(5)²z + 3(5)z² + z³ =
125 + 3(25)z + 15z² + z³ =
125 + 75z + 15z² + z³