What must you add to the expression x2+bxx2+bx to complete the square?
1 answer:
We are given the incomplete expression:
x^2 + b x
Now to complete the square, we need to add the square of
the half of b, that is:
(b / 2)^2
or
b^2 / 4
Therefore the complete expression is:
<span>x^2 + b x + (b^2 / 4)</span>
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