Question 977894
2x^2+(a+6)x-a(a+3) =
(2x - a) * (x + (a+3)) =
2x^2 -ax + 2ax+6x - a(a+3) =
2x^2 + (a+6)x - a(a+3)
therefore the factors are
(2x - a) * (x + (a+3))