MCQ
The factorisation of $3x^2 + 10x + 8$ is:
- ✓$(3x + 4) (x + 2)$
- B$(3x - 4) (x – 2)$
- C$(3x + 4) (x - 2)$
- D$(3x - 4) (x + 2)$
✓
Answer
Correct option: A.
$(3x + 4) (x + 2)$
A. $(3x + 4) (x + 2)$
Solution:
$= 3x^2 + 10x + 8 = 3x^2 + 6x + 4x + 8$
$= 3x(x + 2) + 4(x + 2)$
$= (x + 2) (3x + 4).$
Solution:
$= 3x^2 + 10x + 8 = 3x^2 + 6x + 4x + 8$
$= 3x(x + 2) + 4(x + 2)$
$= (x + 2) (3x + 4).$
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