A -60
B 60
C 30
D -30
Correct Answer: Option A
f(p)=P2+7p + c; p-5 দ্বারা বিভাজ্য হলে f(5)=0 হবে
এখন, f(5)= 52+7×5+c
=25+35+c=60+c
শর্তমতে,60+c=0
so, c= -60
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