question\nif using the method of completing the square to solve the quadratic equation below, which number…

question\nif using the method of completing the square to solve the quadratic equation below, which number would have to be added to \complete the square\?\n$x^2 - 13x = -4$\nanswer attempt 1 out of 2
Answer
Answer:
$\frac{169}{4}$
Explanation:
Step1: Identify coefficient of $x$
Coefficient of $x$ is $-13$
Step2: Take half of the coefficient
$\frac{-13}{2}$
Step3: Square the result
$\left(\frac{-13}{2}\right)^2 = \frac{169}{4}$