Question 64059
QUESTION:



simplify 3(a-b)+2(a+3b)-4(a-2b)


ANSWER:




 3(a-b)+2(a+3b)-4(a-2b)


Remove the parenthesis by multiplying as follows,


3*a - 3*b + 2*a + 2*3b - 4*a + 4*2b


==> 3a - 3b + 2a + 6b- 4a + 8b


Now collect similar terms as follows,



==> 3a + 2a - 4a - 3b + 6b + 8b


Take out common factor


==> a ( 3 + 2 - 4 ) - b ( 3 -6 - 8 ){ If we put negative sign out side the bracket, sign of terms inside the bracket will change.



==> a ( 1 ) - b ( -11 )



==> a + 11b



Which is the required answer.



Hope you understood.




Regards.



praseenakos@yahoo.co.in