SOLUTION: 2x^3 + x^2 - 2x - 1 factor out completely. .

Question 270203: 2x^3 + x^2 - 2x - 1
factor out completely.
.
Found 2 solutions by palanisamy, anicole:
Answer by palanisamy(496) (Show Source): You can put this solution on YOUR website!
2x^3 + x^2 - 2x - 1
=2x^3 -2x + x^2 - 1
=2x(x^2-1)+1(x^2-1)
=(x^2-1)(2x+1)
=(x+1)(x-1)(2x+1)
Answer by anicole(2) (Show Source): You can put this solution on YOUR website!
2x^3 + x^2 - 2x - 1
=2x^3 -2x + x^2 - 1
=2x(x^2-1)+1(x^2-1)
=(x^2-1)(2x+1)
=(x+1)(x-1)(2x+1)

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