7^(4) x 7^(-8) x 7
Rewrite the expression using the base only once.
1 answer:
7^4 * 7^(-8) * 7
= 7^4 * 7^(-8) * 7^1
= 7^[ 4 + (-8) + 1 ]
= 7^[ 4 - 8 + 1 ]
= 7^(-3) <----- this is the answer.
I hope this helps. =)
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