Question

x^3+9x^2-2x-18

factor by grouping

Answer 1

9 and x are good candidates maybe:

(x^3-2x) + (9x^2-18)

x(x^2 -2) +9(x^2-2)

(x+9) (x^2-2)

Answer 2

(x+9) (x-sqrt(2)) (x+sqrt(2)) to get technical

Answer 3

do u just pick polynomial out and factor them out

Answer 4

i try to see what I can group that has something in common to pull out

Answer 5

(x^3+9x^2) + (-2x-18)

x^2(x+9) -2(x+9)

(x+9) (x^2-2) works the same

Answer 6

ok I was trying that and not havin any luck

Answer 7

mix and match till you get something that works ;)