answer the question plz...
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Expand put the value of pqr:-
=8-12√3+18-3√3+3√3-9√7+21√3-7√7+7√7-42
+12√7-8
=9√3 + 12√7 -24
=8-12√3+18-3√3+3√3-9√7+21√3-7√7+7√7-42
+12√7-8
=9√3 + 12√7 -24
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