Question

Factorise
4y^2 - 12y + 9

Answer 1

Answer:

(2y-3)^2

Step-by-step explanation:

4y^2-12y+9

splitting of middle term:

= 4y^2-6y-6y+9

=2y(2y-3) -3(2y-3)

=(2y-3) (2y-3)

=(2y-3)^2

value of y: (can be used while checking the answer)

2y-3 =0

2y = 3

y= 3/2