bewellplus.gsu.edu
angeltovar angeltovar
  • 13-12-2013
  • Mathematics
Answered

what is x3+3x2-x-3 factor by grouping

Verified Answer :

tomek1172
tomek1172 tomek1172
  • 13-12-2013

x3 + 3x2-x-3=0
x2(x+3)-(x+3)=0
(x2-1)(x+3)=0
x2-1=0
(x-1)(x+1)=0
x=1
x=-1

x+3=0
x=-3

Answer Link
D3xt3R
D3xt3R D3xt3R
  • 13-12-2013

\(x^3+3x^2-x-3\)

\(x^2(x+3)-x-3\)

\(x^2(x+3)-(x+3)\)

\(\boxed{\boxed{(x+3)(x^2-1)}}\)

Answer Link

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