The power of minus 8 in 2011 times the power of minus 8 in 1 in 2010 equals?

The power of minus 8 in 2011 times the power of minus 8 in 1 in 2010 equals?

﹙-8﹚^2011×﹙-1/8﹚^2010=﹙-8﹚^2010×﹙-8﹚×﹙-1/8﹚^2010
=﹙8×1/8﹚^2010×﹙-8﹚=1^2010×﹙-8﹚=-8

If a is the largest negative integer, calculate the value of a to the 2007th power plus a to the 2008th power plus a to the 2009th power plus a to the 2010th power

The largest negative integer is -1,1-1 to the power of 2007 is -1,1-1 to the power of 2008 is 1,1-1 to the power of 2009 is -1,1-1 to the power of 2010, so the result is (-1)+1+(-1)+1=0