3 years ago

7^(4) x 7^(-8) x 7 Rewrite the expression using the base only once.

1 answer:

4 0

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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