Question

factorise the following 9y²-12+4​

Answer 1

Answer:

9y²-12+4

9y²-(12+4)

9y²-16

Answer 2

Step-by-step explanation:

9y²-12+4

=9y²-9y-4y+4

=9y(y-1)-4(y-1)

=(9y-4) (y-1)