1.

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

Answer»

3a-2b-ab-(a-b+ab)+3ab+b-a

=3a-2b-ab-a+b-ab+3ab+b-a

=3a-a-a-2b+b+b-ab-ab+3ab

=3a-2a-2b+2b-2ab+3ab

=a+ab=a(1+b)



Discussion

No Comment Found