Answer with explanation:
The given Polynomial is :
= x³+5 x² +6 x
=x×(x²+5 x +6)
Splitting the middle term
=x × (x²+3 x +2 x +6)
=x × [x×(x+3)+2×(x+3)]
=x ×[(x+2)(x+3)]
=x×(x+3)(x+2)
=(x²+3 x)(x+2)
⇒One factor of the Polynomial =(x²+3 x)
Other factor is = x+2
Option B:→ (x+2)