Question

factorise the following by splitting the middle term s^2-s-9​

Answer 1

Answer:

sgsjdvhssbskjsusxidb

Answer 2

Answer:

(s-9)(s+1)

Step-by-step explanation:

s²-8s-9

=s²-9s+s-9

=s(s-9)+1(s-9)

=(s-9)(s+1)