Question

If (y-3) is a factor of y³-2y²-9y+18 then
find the other two factors.​

Answer 1

Answer:

y³-2y²-9y+18

=y²(y-2) - 9(y-2)

=(y²-9) (y-2)

=(y²-3²) (y-2)

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

Thus (y+3)and (y-2) are the other two factors