SOLUTION: (a−4)−7 #42, just multiply the two exponents. You should get a positive value so there is no need to reciprocate the final expression.

Question 721261: (a−4)−7
#42, just multiply the two exponents. You should get a positive value so there is no need to reciprocate the final expression.
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
=a^28

SOLUTION: (a&#8722;4)&#8722;7 #42, just multiply the two exponents. You should get a positive value so there is no need to reciprocate the final expression.