Answer:
(m^8)/(2n^4)
Step-by-step explanation:
The relevant laws of indices are ...
- (a^b)/(a^c) = a^(b-c)
- a^-b = 1/a^b
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Simplifying the given expression using these rules gives ...
[tex]3\dfrac{112m^{11}n^{-2}}{672m^3n^2}=\dfrac{336}{672}m^{11-3}n^{-2-2}=\boxed{\dfrac{m^8}{2n^4}}[/tex]
