MCQ
What is the value of $(a + 4) (a + 2)$
- A$a^2 + 6$
- B$a^2 + 8$
- ✓$a^2 + 6a + 8$
- D$a^2 + 6a + 6$
✓
Answer
Correct option: C.
$a^2 + 6a + 8$
C. $a^2 + 6a + 8$
Solution:
$(a+4)(a+2) $
$ \Rightarrow a(a+2)+4(a+2) $
$ \Rightarrow a^2+2 a+4 a+8 $
$ \Rightarrow a^2+6 a+8$
Solution:
$(a+4)(a+2) $
$ \Rightarrow a(a+2)+4(a+2) $
$ \Rightarrow a^2+2 a+4 a+8 $
$ \Rightarrow a^2+6 a+8$
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