How do you simplify #2^3 - 4^2-(-3)2 +(-1)^7 #?

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Answer 1 · 2016-04-14T15:32:59

#-3#

To simplify #2^3-4^2-(-3)2+(-1)^7#

Begin by simplifying the exponents

#2^3 = 8#
#4^2=16#
#(-1)^7=-1#

#8-16-(-3)2+(-1)#

Now simplify the multiplication

#(-3)2 = -6#

#8-16-(-6)+(-1)#

Now simplify the signs

#-(-6) = +6#
#+(-1) = -1#

#8-16+6-1#

Now add and subtract

#8-16=-8#
#+6-1=+5#

#-8+5 = -3#