How do you simplify #6^3 - 9^3#?

1 Answer
Sep 30, 2015

Answer:

#6^3-9^3=-513#

Explanation:

You could factor out a #3^3# from each term, but in the long run I think it is simpler to just do the arithmetic:

#6^3 = 6xx6xx6 = 36xx6 =216#

#9^3 = 9xx9xx9 = 81xx9 = 729#

#6^3 - 9^3 = 216 - 729 = -513#