# SOLUTION: Factor Completely. x^2 - 2x +1 I am having trouble solving this problem and need some help. Thanks

Algebra ->  Algebra  -> Polynomials-and-rational-expressions -> SOLUTION: Factor Completely. x^2 - 2x +1 I am having trouble solving this problem and need some help. Thanks       Log On

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 Question 70970: Factor Completely. x^2 - 2x +1 I am having trouble solving this problem and need some help. Thanks Answer by jim_thompson5910(28593)   (Show Source): You can put this solution on YOUR website!We're looking for 2 numbers that add to -2 and multiply to 1. The only factors which multiply to 1 are: 1 and 1 (1*1=1), and -1 and -1 (-1*-1=1). If we add 1 and 1 we get 2, not -2, so these two don't work. If we add -1 and -1 we get -2, which works. So we then place these two numbers in parenthesis with x terms like so: If we FOIL this we get } again This can be also written as this