SOLUTION: I am not able to figure this one out, the question is as follows: What number would you add to the equation below to complete the square? x^2

SOLUTION: I am not able to figure this one out, the question is as follows: What number would you add to the equation below to complete the square? x^2 - 13x=0 A. 26 B. 169/4 C. 13/

Question 463724: I am not able to figure this one out, the question is as follows:
What number would you add to the equation below to complete the square?
x^2 - 13x=0
A. 26
B. 169/4
C. 13/4
D. 169/2
I have tried replacing x with all of these numbers and to no avail. It has been over 15 years since I have taken an algebra class! Please help me understand what I am overlooking.
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
Whatever the coefficient of the x term is (not the term!), divide by 2, and then square the result. In this case, the coefficient of x is -13. Dividing by 2 and then squaring, we get .
RELATED QUESTIONS
I am not a math tutor but I couldn't figure out how to post as a student. Question:... (answered by Mathtut)

How's it going? I was wondering if you would be able to assist me please, as I am stuck... (answered by bucky,chitra)

Hey I also have another question I am so sorry. But I don't understand what or how I... (answered by longjonsilver)

I need some help with understanding how to use patterns or a linear equation to complete... (answered by stanbon)

ok im not sure how to figure this out. i was given the coordinates (0,4) and (0,10) or (answered by derbyman4025)

I am still unsure when it comes to functions. I have a question that is as follows: Is... (answered by Theo,jim_thompson5910)

Hi I am stuck on this one which has me completely bamboozled. Your assistance would be... (answered by solver91311,stanbon)

The answer is a 3 digit odd number. The number in the tens place is half of the ones... (answered by scott8148)

I am trying to figure out a question that has 2 parts. The question is as follows: A) (answered by stanbon)