Question

please solve this...
from the chapter factorisation.
please solve it quickly...​

Answer 1

Answer:

y²-20y

Step-by-step explanation:

=(y³-18y²- 40y) / (y+2)

= (y³+2y²-20y²-40y) / (y+2)

= y²(y+2) - 20y(y+2) / (y+2)

= (y+2) (y²-20y) / (y+2)

= y²-20y