Question

15a square-6a-9 solve by splitting the middle term​

Answer 1

15a^2-6a-9

15a^2-15a+9a-9

15a(a-1)+9(a-1)

(15a+9)(a-1)

a=-9/15

-3/5

a=1

Answer 2

Answer:

 15a²-6a-9

=15a²-15a+9a-9

=15a(a-1)+9(a-1)

=(15a+9)(a-1)