Browse · harp Print → smc algebra senior Problem Suppose that P=2m and Q=3n. Which of the following is equal to 12mn for every pair of integers (m,n)? (A) P2Q (B) PnQm (C) PnQ2m (D) P2mQn (E) P2nQm Solution — click to reveal We have 12mn=(2⋅2⋅3)mn=22mn⋅3mn=(2m)2n⋅(3n)m=P2nQm. Final answer E ← Previous problem Next problem →