Question #N764
The expression $(x + 3)^2$ is equivalent to which of the following?
A. x^2 + 9
B. x^2 + 6x + 9
C. x^2 + 9x + 9
D. x^2 + 3x + 9
Correct Answer is: B
The expression $(x + 3)^2$ is equivalent to $(x + 3)(x + 3)$. Using the distributive property, we expand this to get $x^2 + 3x + 3x + 9$. Combining like terms gives us $x^2 + 6x + 9$.