Question

(a + 1 )(a - 1 ) - 2 ( a - 1 ) FACTOR COMUN POLIMONIO

AYUDENME PLIS

Answer 1

Respuesta:

(a - 1)²

Explicación paso a paso:

(a + 1) (a- 1) - 2 (a- 1) =  el factor comùn es (a - 1)

(a - 1) (a + 1 - 2) =

(a - 1) ( a - 1) =

( a - 1 )²