Question #N177
If $x^2 + 2x + 1 = 0$, what is the value of $x$?
A. -2
B. -1
C. 1
D. 2
Correct Answer is: B
The expression $x^2 + 2x + 1$ is a perfect square trinomial and can be factored as $(x + 1)^2$. Setting this equal to 0, we get $(x + 1)^2 = 0$. Taking the square root of both sides, we get $x + 1 = 0$. Subtracting 1 from both sides, we get $x = -1$.