MCQ
The factors of $3 \mathrm{m}^{2}+9 \mathrm{m}+6$ are:
- A$(m+1)(m+2)$
- ✓$3(m+1)(m+2)$
- C$6(m+1)(m+2)$
- D$9(m+1)(m+2)$
✓
Answer
Correct option: B.
$3(m+1)(m+2)$
b$3 m^{2}+9 m+6=3\left(m^{2}+3 m+2\right)$ $=3\left[m^{2}+m+2 m+2\right]$ $=3[m(m+1)+2(m+1)]$ $=3[(m+1)(m+2)]$
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