Express the following fraction in simplest form, only using positive exponents.
start fraction, 5, n, to the power minus 7 , c, to the power 4 , divided by, minus, 3, left bracket, n, to the power minus 3 , c, squared, right bracket, squared, end fraction
−3(n
−3
c
2
)
2

5n
−7
c
4

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