3.74: Simplify a product of powers

0606/12/O/N/22 — Question 3 · 4 marks

Write 9p2qr3(2p)3q1r1/5\dfrac{\sqrt{9p^{2}q}\,\cdot\, r^{-3}}{(2p)^{3}\, q^{-1}\, r^{1/5}} in the form kpaqbrckp^{a}q^{b}r^{c}, where kk, aa, bb and cc are constants.
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