যদি f(x)=x^3+9x^2-3x-6 হয়, তবে f(-2)=কত?
Solution
Correct Answer: Option A
f(x)=x^3+9x^2-3x-6
f(-2)= (-2)^3 + 9(-2)^2 - 3.(-2) - 6
= -8 + 36 + 6 - 6
= 28
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