n^2 + 3n + 2 2n
___________ - __________
n^2 + 6n + 8 n + 4
(n + 2) ( n + 1) 2n (n + 2)
____________ - ____________
(n + 4) ( n + 2) (n + 4) ( n + 2)
( n + 2) ( n + 1) - 2n ( n + 2)
________________________
(n + 4) ( n + 2)
n^2 + 3n + 2 - 2n^2 - 4n
____________________
(n + 4) ( n + 2)
-n^2 - n + 2
____________
(n + 4) ( n + 2)
- ( n^2 + n - 2)
____________
(n + 4) ( n + 2)
- (n + 2) (n - 1)
____________
( n + 4) ( n + 2)
- (n - 1)
____________
(n + 4)
(1 - n)
____________
( n + 4)
d^2 - 7d + 12 d^2 + 5d + 6
___________ + ______________
d^2 - d - 6 d^2 - 2d - 15
(d - 4) ( d - 3) (d + 3) (d + 2)
___________ + ____________
(d - 3) (d + 2) (d - 5) (d + 3)
( d - 4) ( d + 2)
______ + _____
( d + 2) (d - 5 )
(d - 4) (d - 5) + (d + 2)(d + 2)
________________________
(d + 2) ( d - 5)
d^2 - 9d + 20 + d^2 + 4d + 4
_______________________
(d + 2) (d - 5)
2d^2 - 5d + 24
______________
(d + 2) (d - 5)