amira is solving the equation $x^2 - 6x = 1$. which value must be added to both sides of the equation to…

amira is solving the equation $x^2 - 6x = 1$. which value must be added to both sides of the equation to make the left side a perfect-square trinomial?\n-9\n8\n9\n36
Answer
Explanation:
Step1: Identify coefficient of x
The coefficient of $x$ is $-6$.
Step2: Take half the coefficient
$\frac{-6}{2} = -3$
Step3: Square the result
$(-3)^2 = 9$
Answer:
C. 9