I need help with algebra ASAP!

I'm in Algebra 1 this year and I really need help solving these equations.

Completing the square

1)c^2-7c= -12
2)x^2-2x-8= 0

Incomplete Quadratic Equations
1) 2x^2-2 = 16

Any advice will be appreciated!


c^2-7c= -12
What is 1/2 of -7? Square that, and add to both sides.

x^2-2x-8= 0
What is 1/2 of -2? square that, and add to both sides



A cylinder has a radius of 5 in. If the volume of the cylinder is 250* pi in. ^3, what is the height of the cylinder

[Hint: The volume of a cylinder is given by V=pi * r&2 *h
Remember that pi = 3.14

  1. 👍 0
  2. 👎 0
  3. 👁 104

Respond to this Question

First Name

Your Response

Similar Questions

  1. Algebra Quadratic Equations

    I am trying to define the different appraoches to solving quadratic equations. My book says using quadratic formula, completing the sqaure and factoring. I thought completing the square would be by facotring? How are these two

    asked by Marysvoice on February 5, 2008
  2. Math

    Solving quadratic equations by completing the square. Could you show me every step how to do it. That way I'll know probably know how to do the other ones. With that method you use. 1/2x^2 + x -13 = 0

    asked by Basil on October 30, 2009
  3. algebra 1

    at a certain high school,350 students are taking algebra. the ratio of boys to girls taking algebra is 33:37. How many more girls are taking algebra than boys? - How can you write a system of equations to model the situation? -

    asked by lucy on January 27, 2013
  4. math

    Please explain in detail how to solve each question: At a certain high school, 350 students are taking an algebra course. The ratio of boys to girls taking algebra is 33:37. How many more girls are taking algebra than boys? How

    asked by Jane on January 4, 2012
  5. pre- algebra(MATH)

    I need help with pre-algebra solving equations by multiplying or dividing. Can you help me with this homework for free?

    asked by Ketrice on November 5, 2009
  6. algebra attn Reiny

    Thanks for your help with the solving of the three equations! Yes, it was a typo. I just finished solving it a long way, solving for the 1st 2 equations then the 2nd and 3rd and plugging in variables...etc. etc. Your way gave the

    asked by Terri on February 24, 2009
  7. FOR MATHMATE

    Media services charges $40 for a phone and 20/mth for its economy plan. It says to find a model that determines the total cost, C(t), of operationg a media Services phone for t months. I think the answer should be in this equation

    asked by AMY on November 26, 2010
  8. algebra

    How is the process of solving literal equations different from solving equations with only one variable? I have looked over my notes, and me lessons, but I can not come up with a good answer, or explanation;( Please help, it would

    asked by kylie on January 9, 2019
  9. math

    from the looks of things I am in good company when it comes to having problems solving algebra equations. I hope you can help with this one I have been working on for two days and still don't understand. I need ordered pairs for

    asked by kalaya on August 24, 2010
  10. RE

    I am going to take the Regents Algebra 1(Common Core)and I'd like to know whether a certain procedure of mine could lower my grade. When solving linear equations I do this: x+2=20 I just pass the 2 negative to the other side

    asked by Liah on July 22, 2016

More Similar Questions