SOLUTION: I am having major problems solving by completing the square 2x^2-6x=5. I have no idea where to begin
Algebra.Com
Question 40304: I am having major problems solving by completing the square 2x^2-6x=5. I have no idea where to begin
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
The first step is to divide everything by 2...so we have
2x^2 - 6x = 5
x^2 - 3x = 5/2
Now continue with the standard procedure (except that this one involves yucky fractions)...lol...
x^2 - 3x + 9/4 = 5/2 + 9/4 (half of 3 squared is 9/4)
(x - 3/2)^2 = 10/4 + 9/4
(x - 3/2)^2 = 19/4 now take the square root of both sides
x - 3/2 = ± sqrt(19/4)
x - 3/2 = ± sqrt(19) / 2
x = (3 ± sqrt(19)) / 2
RELATED QUESTIONS
I am having problems solving this inequality 4x^2-x-14 (answered by checkley77)
I AM HAVING PROBLEMS SOLVING THIS PROBLEM AND NEED SOME HELP
SOLVE BY COMPLETING THE... (answered by stanbon)
I want to see the steps in solving 2 math problems. Got them wrong on a quiz and have no... (answered by rfer,stanbon)
I have no idea how to work these problems or where to begin, it's in section 4.1... (answered by rapaljer)
Solve for x:
5x^2=-17x-6
I have no idea where to begin.... (answered by unlockmath,richwmiller)
I am having some difficulty
V=4/3(3.1416)r^3
The volume of a basketball is 380in^3.... (answered by rfer)
I apologize in advance, but I am unsure as to the type of problems these are.
1.... (answered by checkley77,stanbon)
I am having problems completing the square x^2-8x=10. Below is the steps that I have... (answered by fractalier,stanbon)
here is another i am having problems with
2x^2 + 5x - 2 = 0 this is on completing the... (answered by stanbon,kdturnage)