Jambmaths question:
$\text{If }x-3\text{ divides }{{x}^{3}}-2{{x}^{2}}-x+6,\text{ find the remainder}$
Option A:
27
Option B:
9
Option C:
12
Option D:
18
Jamb Maths Solution:
$\begin{align} & f(x)={{x}^{3}}-2{{x}^{2}}-x+6 \\ & \text{When divided by }x-3 \\ & f(3)={{3}^{3}}-2({{3}^{2}})-3+6=12 \\ & \text{The remainder is 12} \\\end{align}$
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