I did it the long way...
I multiplied both out and got
When you divide out, you get
I know the answer is 16. When I bring the 4xy on the bottom up to the top why doesn't it equal 16?
How did you divide????
Am I not allowed to divide the like terms on the top and bottom?
Not by splitting them.....
(2a+b)/(a+b) can be handled as
(a+a+b)/(a+b) = [a/(a+b)] +1 but you can not divide just a by a and by by b.
In summary you can split numerator but can't split denominator.
SAID BUSINESS SCHOOL, OXFORD - MBA CLASS OF 2008