Question

factorise y²-5y+6 using factor theorem

Answer 1

y²-5y+6

y²-(6-1)y+6

y²-6y-y+6

y(y-6)-1(y-6)

(y-1)(y-6)


y=1,y=6

Answer 2

y2-(3+2)y+6
=y2-3y-2y+6
=y(y-3)-2(y-3)
=(y-3)(y-2)
I hope this correct.