Question
Factor by grouping
X^3+3X^2-5x-15
I get x^2(x+3)-5(x+3) is this correct????
X^3+3X^2-5x-15
I get x^2(x+3)-5(x+3) is this correct????
Answers
Reiny
ok so far, but keep going
= (x+3)(x^2 - 5)
= (x+3)(x^2 - 5)
Katie A
Ok I thought it could go to (X^2-5)(x+3)
Reiny
well, isn't that the same thing ?
( just like 3x4 = 4x3 )
( just like 3x4 = 4x3 )
Katie A
Yes I guess I am not with it at the moment