Question

solve this for 35 points 13. ii.

Answer 1

here is your answer hope it will help you
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Answer 2

The answer to your question is n=4.
RHS: (a^3)^3 ÷ a^-18
=a^9-(-18)
=a^27--- 1
LHS:
(a^2n-3+2n+2)/a^-12
=(a^4n-1)/a^-12--- 2
Equating 1 and 2,
a^4n-1 = (a^27+(-12))
a^4n-1=a^15
4n-1=15
4n=16
So n=4