Answers

2014-04-26T20:22:59+05:30
X^2+2X+1=x^2+x+x+1=x(x+1)+(x+1)=(x+1)(x+1)
i.e; x=-1.or x=-1.
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2014-04-26T20:59:05+05:30
    X^2+X+X+1
=> X(X+1)+1(X+1)
=> (X+1)(X+1)
1 3 1