Question
Factorise:
$x^3-3 x^2+x-3$
$x^3-3 x^2+x-3$
✓
Answer
$x^3-3 x^2+x-3$
$=x^2(x-3)+1(x-3)(x-3)$
$\left(x^2+1\right)$
$=x^2(x-3)+1(x-3)(x-3)$
$\left(x^2+1\right)$
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