Multiple choice

Express the answers with positive indices: (2m2n-4)/(6m5n-1)

  1. 1/(3m3n3)

  2. 3m3n3

  3. 6m7n5

  4. 2m7n5
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A Correct answer
Explanation

Divide the coefficients (2/6 = 1/3) and subtract the exponents for like bases (m^(2-5) = m^-3 and n^(-4 - -1) = n^-3). Since the indices must be positive, move the negative powers to the denominator to get 1/(3m^3n^3).

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