1.

21a3-17a, 89a3-64a2+6a+16 से कितना कम है

A. 68a3-47a2+6a+16
B. 68a3-47a2-6a+16
C. 68a3+47a2+6a+16
D. 68a3-47a2+6a-16
Answer» B. 68a3-47a2-6a+16


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