Respuesta :

theleangreenbean

Answer:

(p-q)(a-1)

Step-by-step explanation:

Hi there!

a(p-q)+q-p

= ap-aq+q-p

= ap-p-aq+q

Factor out p and q

= p(a-1)-q(a-1)

Factor by grouping

= (p-q)(a-1)

I hope this helps!