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Explain the error in the work shown. Find the correct answer.
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1 vote
Explain the error in the work shown. Find the correct answer.

Explain the error in the work shown. Find the correct answer.-example-1
User Azibi
by
5.4k points

2 Answers

2 votes
you cant have a negative exponent

User Harshavmb
by
6.8k points
3 votes
The mistake is in 3rd step, as we can't equate powers if bases are different.
4^-3=2^8a
2^-6=2^8a
-6=8a
-3/4=a
User Tatham Oddie
by
7.0k points
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