f(x) = x3+ax3+2x3 = 0 হলে, a এর মান কত?
A 3
B 1
C 0
D -3
Correct Answer: Option D
f(x) = x3+ax3+2x3 = 0
=> x3 (1+a+2) = 0
=> a + 3 = 0
=> a = -3
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