Question 968011
simplify expression and state the excluded values of the variables 
3 m^2 n^3 / (36 m n^3 - 12 m^2 n^2) 
simplified I get m n / 12 n - 4 m 
but can't find the excluded 
should it be 3n, 0, 0 ?
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3 m^2 n^3 / (36 m n^3 - 12 m^2 n^2)
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= [3m^2n^3]/[12mn^2(3n-m)]
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= [m*n]/[4(3n-m)]
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Excluded variable values:: m = 0, n = 0, m = 3n
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Cheers,
Stan H.
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