Answer:
E
Explanation:
=√9pr / (pr)^-3/2
=3√(pr) × (pr)^3/2
= 3p²r²
E. 3p²r²
√9pr / (pr)^-3/2=
3(pr)^1/2*(pr)^3/2=
3(pr)^(1/2+3/2)=
3(pr)^2=3p^2r^2
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