(2 To 2006 minus 2 to 2008) to 2007 2006 Power of 2 minus 2008 power of 2(below semicolon) and 2007 power of 2(above semicolon) (2006 Power of 2 minus 2008 power of 2) power of 2 2006 Power of 2 minus 2008 power of 2(below semicolon) and 2007 power of 2(above semicolon)

(2 To 2006 minus 2 to 2008) to 2007 2006 Power of 2 minus 2008 power of 2(below semicolon) and 2007 power of 2(above semicolon) (2006 Power of 2 minus 2008 power of 2) power of 2 2006 Power of 2 minus 2008 power of 2(below semicolon) and 2007 power of 2(above semicolon)

2^2007/(2^2006-2^2008)
=2*2^2006/[2^2006(1-2^2)]
=2/(1-4)
=-2/3

2007(3Rd power)-2006*2007*2008-2009=?

2007(3Rd power)-2006*2007*2008-2009
=2007*(2007*2007-2006*2008)-2009
=2007*(2007*2007-(2007-1)*(2007+1))-2009
=2007*(2007*2007-2007*2007+1)-2009
=-2