(3p²qr-2/2p-¹q³)² ÷ (2p³r)-¹
please help me with this sum.... at the last part of the equation it's (2p³r)-¹..
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(3p^2qr^-2/2p^-1q^3)^2/(2p^3r)^-1
(9p^4q^2r/
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