Question

What value completes the square for the expression? x^2+14x

Answer 1

I'm not too sure what this question is even asking...

Answer 2

completing the square means, we need to bring that expression in the form
\(x^2+2ax+a^2\)
so that we can write it as a perfect square
\((x+a)^2\)

the question is asking for a^2

Answer 3

now can you tell me what 2a = ...?
and so what a =... ?