( 2008 + 1009 ) . ( 2009 - 1009 ) + 4018
3017 . 1000 + 4018
3017000 + 4018
3021018
2008.2009+4018/2010.2011-4020
=2008.2009+2009.2/2010.2011-2010.2
=2009.(2008+2)/2010.(2011-2)
=2009.2010/2010.2009
=1
2008.2009+4018
=4034072+4018
=4038090
2010.2011-4020
=4042110-4020
=4038090
a) = 2008.2009+2009.2
= 2009.(2008+2)
= 2009.2010
b) = 2010.2011-2010.2
= 2010.(2011-2)
= 2010.2009
