Looks good!!
I need to simplify this:
(2b^-7c^4)^4
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5^-1 b^2 c^6
Here's my attempt:
2^4 (b^7)^4 (c^4)^4
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.2 b^2 c^6
16 b^-28 c^16
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.2 b^2 c^6
80c^10
_______
b^30
Is this correct?
( ^ followed by a number represents an exponent)