MCQ
The factorisation of $4y^2 - 12y + 9$ is:
- A$(2y + 3)^2$
- ✓$(2y - 3)^2$
- C$(3y + 2)^2$
- D$(3y - 2)^2$
✓
Answer
Correct option: B.
$(2y - 3)^2$
B. $(2y - 3)^2$
Solution:
$= 4y^2 - 12y + 9$
$= (2y)^2 - 2(2y)(3) + (3)^2$
$= (2y - 3)^2$
Solution:
$= 4y^2 - 12y + 9$
$= (2y)^2 - 2(2y)(3) + (3)^2$
$= (2y - 3)^2$
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