x^2 + 2x + 1 = 0 solve by factoring

x^2 + 2x + 1 = 0

(x )(x ) ( +1)( +1)

(x+1)(x+1)=(x+1)^2

check:

(x+1)(x+1)

(x)(x) (x)(1) (1)(x) (1)(1)

x^2 +1x +1x +1

x^2 +2x +1

Simplify:

x+1=0

Solve:

x+1=0

x+1-1=0-1

x=-1