Question

practice problem....help me factor 54-15a+a^2
....

Answer 1

In this problem -6*-9=54 and -6-9=-15, so insert -6 as the right hand term of one factor and -9 as the right-hand term of the other factor.
(a-6)(a-9)

Answer 2

thanks I did that and got the answer (a+6) (a-9)

Answer 3

so are both signs negative or one positive