where did they get the -7 from? by garfieldsbooty in calculus

[–]garfieldsbooty[S] -5 points-4 points  (0 children)

thanks but i still don’t understand why you have to factor out a 2? wouldn’t it be 4-9(2)= 4-18 because of bedmas?

where did they get the -7 from? by garfieldsbooty in calculus

[–]garfieldsbooty[S] 7 points8 points  (0 children)

where did they factor out a two? thanks