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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.
Click here to see answer by robertb(5830)

Question 464608: please help me solve sqrt(x+8)-8=x
Click here to see answer by nerdybill(7384)

Question 464710: x+6=sqrt12+x
Click here to see answer by algebrahouse.com(1659)

Question 464811: what is the square of this binomial?
(a+b)^2
Click here to see answer by MathLover1(20849)

Question 465492: im looking for the explanations of this problem
3x^2+12x+31=0
Click here to see answer by Alan3354(69443)

Question 465649: what is 3+5 times the square root of n=18

Click here to see answer by ewatrrr(24785)

Question 465731: i am looking for the solution and explanation of this problem
x^2-9x+20=0
thank you
Click here to see answer by sofiyac(983)

Question 465681: WHAT IS TJE SQUARE ROOT OF -2 AND 64
Click here to see answer by sofiyac(983)

Question 465736: What is the domain of g(x)= sqrt 5x-40 ? Write your answer in interval notation
Click here to see answer by sofiyac(983)

Question 465622: A rectangular table is four times as long as it is wide. If the area is 36ft^2 find the length and width.
Click here to see answer by sofiyac(983)

Question 465966: Multiply & Simplify sqrt 27x times sqrt 12x = ?
Click here to see answer by sofiyac(983)

Question 466057: square root of 22x power of 2 times the square root of 2x
Click here to see answer by algebrahouse.com(1659)

Question 466113: Please help me solve this problem. Thanks!!
Divide: 48√4 = 24√12 OVER 6√4
Thanks again(:
Click here to see answer by sofiyac(983)

Question 466259: method to find a least positive number that should be added to 1515 to become a perfect square
Click here to see answer by Edwin McCravy(20054)

Question 466260: rewrite the rational exponent
Click here to see answer by Edwin McCravy(20054)

Question 466491: Simplify by taking roots of the numerator and the denominator. assume that all expressions under radicals represent positive numbers. (I'm lost on this one!)
SQRT125x^11/y^3
Click here to see answer by ankor@dixie-net.com(22740)

Question 466651: What is the answer to x2-2=16?
Click here to see answer by Alan3354(69443)

Question 466749: What is (6*x +6*y)squared?
Click here to see answer by stanbon(75887)

Question 467066: Is it true that the expression 7x^3 - 40 has no common factor other than 1?
Click here to see answer by Big Poop(157)

Question 467111: multiply.
(4sqrt5 - 8sqrt7)(2sqrt5 + 4sqrt7)
I'm lost!!!!
Click here to see answer by poliphob3.14(115)

Question 467099: Hello. Can you please help me make x the subject of N= x^5/a ?
Thank you!
Click here to see answer by Alan3354(69443)

Question 467099: Hello. Can you please help me make x the subject of N= x^5/a ?
Thank you!
Click here to see answer by MathLover1(20849)

Question 467535: Please help me solve this equation:
Click here to see answer by stanbon(75887)

Question 467547: Can someone please explain this? This was a challenge question from the instructor.
√x - √(x - 5) = 1

Click here to see answer by mananth(16946)

Question 467547: Can someone please explain this? This was a challenge question from the instructor.
√x - √(x - 5) = 1

Click here to see answer by stanbon(75887)

Question 467630: Simplify; express in terms of i. Please show all work.
√-36
Click here to see answer by Alan3354(69443)

Question 467671: 1. Simplify the expression.
square root -128 square root -16
4.Multiply the expressions, and simplify.
(2x^-4y^-4) � (-7x^4y^-2)
5.Short Answer: Simplify the following expression, and rewrite it in an equivalent form with positive exponents.
(6x^-1)^-2
6.Raise the quantity in parentheses to the indicated exponent, and simplify the resulting expression.
(-2x^9y^4)^4
Thank you.
Jesse
Click here to see answer by stanbon(75887)

Question 467701: How do you simplify the square root of 90 minus the square root of 10?

Click here to see answer by ewatrrr(24785)

Question 467701: How do you simplify the square root of 90 minus the square root of 10?

Click here to see answer by solver91311(24713)

Question 468173: (3xsquared)squared
Click here to see answer by jorel1380(3719)

Question 468378: reduce:
√7 over 3
Click here to see answer by Alan3354(69443)

Question 468405: stuck on this problem. square root of both sides throws me off. please assist
Darla is building a new desk. To make sure she had made a square corner, she measures 7ft from the corner along one edge and 10ft. from the corner along the other edge. How long should the diagonal be between those two points if the corner is a right angle?.

Click here to see answer by jorel1380(3719)

Question 468446: How do I solve..
Square root of 6 times the square root of 30?
Click here to see answer by algebrahouse.com(1659)

Question 468720: Simplify the following radical.
Click here to see answer by MathLover1(20849)

Question 468715: Simplify the expression by combining the radical terms using the indicated operation(s).

Click here to see answer by jorel1380(3719)

Question 468719: Given , find f(12.8) Your answer should be written in decimal notation, rounded to 4 decimal places.
Click here to see answer by MathLover1(20849)

Question 468719: Given , find f(12.8) Your answer should be written in decimal notation, rounded to 4 decimal places.
Click here to see answer by jorel1380(3719)

Question 468721: Multiply and simplify the radical expressions. Assume all your answers are positive.

Click here to see answer by mananth(16946)

Question 468835: how do i solve for the following? (negative 2 plus the square root of negative 4) squared
Click here to see answer by Theo(13342)

Question 468887: Simplify and please show all work.
√-18√-72
Click here to see answer by rfer(16322)

Question 469109: Given g(x)= square root of 2x+2, find four points on the graph of the function.
Click here to see answer by Tatiana_Stebko(1539)

Question 469168: Okay, I am really struggling with perfect squares, here is the problem...
2/^3sqrt3
Click here to see answer by Alan3354(69443)

Question 469313: square root of z to the 6th power
Click here to see answer by jim_thompson5910(35256)

Question 469703: Multiply.
(√3+9√5)(8√5+3√3)
Simplify your answer as much as possible.
Click here to see answer by jorel1380(3719)

Question 470216: my question is a 2 part A and B
A)

4
______________ Rationalize the denominator and simplify
3rd Root 25x^2
I can't seem to find a solution to this one. I've done it over 5+ times
B)
Rationalize denominators having two terms

sqroot 5 - sqroot 6
___________________
sqroot 5 + sqroot 6
Thank you for your time. I am really lost in the steps to get the answer in both. I need to see it to fully understand it and I want to understand it and not just get the answer.
Thanks again for your help
Allen

Click here to see answer by Tatiana_Stebko(1539)

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