Questions on Algebra: Exponents and operations on exponents answered by real tutors!

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Question 161750: how would you do this problum? (15a to the power of 4) (a to the power of 5a) over (3a to the power of 11) : how would you do this problum? (15a to the power of 4) (a to the power of 5a) over (3a to the power of 11)
Answer by Alan3354(1926) About Me  (Show Source):
You can put this solution on YOUR website!
(15a to the power of 4) (a to the power of 5a) over (3a to the power of 11)
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Did you mean 15a^4*a^5/3a^11 ?
If so,
15a^4*a^5/3a^11
=15a^9/3a^11 Add the exponents in the NUM
=5a^9/a^11 Divide by 3
=5/a^2 Divide by a^9