x³-px+10 = 0 এর একটি সমাধান 2 হলে p এর মান কত?
A -2
B -9
C 9
D 10
Correct Answer: Option C
(2)3 - P.2 + 10 = 0 [x = 2 বসিয়ে ]
=> 8 - 2P = -10
=> -2P = -10 - 8
=> P = -18/-2
P = 9
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