Question

Efectuar
(x + 2)2 - (x - 2)(x + 2) - 4x + (x + 2)(x + 6) - (x + 4)​

Answer 1

Respuesta:

(x + 2)2 - (x - 2)(x + 2) - 4x + (x + 2)(x + 6) - (x + 4)​

$(x + 2)2 - (x - 2)(x + 2) - 4x + (x + 2)(x + 6) - (x + 4)2x + 4 -(x^{2} - 2^{2}) - 4x + x^{2} + 8x + 12 - x - 4\\ 2x + 4 - x^{2} + 2^{2} - 4x + x^{2} + 8x +12 - x - 4$

Los dos $x^{2}$ y los dos 4 se van.

$5x + 16$