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Simplify (pr)2r22p24pr...

Simplify (pr)2r22p24pr

A.

12

B.

p - 2r

C.

1p2r

D.

2pp2r

Correct answer is A

(pr)2r22p24pr

= (pr)(pr)r22p24pr\

= p22pr+r2r22p(p2r

= p22pr2p(p2r)

= p(p2r)2p(p2r)

= 12