Question

X²+2x+1

Split the middle terms and factorize.

Answer 1

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.

Answer 2

    X^2+X+X+1
=> X(X+1)+1(X+1)
=> (X+1)(X+1)