Question

Factor x^3+8x^2+19x+12. I got (x+4)(x+2)(x+6) am i right?

Answer 1

nope check again...

Answer 2

aagaye....aaj der lagadi

Answer 3

okay I got (x+2)(x+6)(x+12)...

Answer 4

I don't think that is completely right...

Answer 5

(x+4)(x+3)(x+1)

Answer 6

Your (x+4) was right
I normally use the remainder theorum to sub in values
So to check (x+4) is a factor you use x=-4 (the solution to x+4=0
into x^3+8x^2+19x+12
and it'll equal 0 if it is a factor
Then use long division to leave you with a quadratic
(x+4)(x^2+4x+3)
then factories the quadratic