Respuestas

2012-10-30T21:23:32+01:00

1)

2am-2an+2a-m+n-1

2a(m-n-+1)-(m-n+1)

(2a-1)(m-n+1)

 

2)

3ax-2by-2bx-6a+3ay+4b

3a(x-2+y)-2b(x-2+y)

(3a-2b)(x+y-2)