2c(c-1)=1

Simple and best practice solution for 2c(c-1)=1 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 2c(c-1)=1 equation:


Simplifying
2c(c + -1) = 1

Reorder the terms:
2c(-1 + c) = 1
(-1 * 2c + c * 2c) = 1
(-2c + 2c2) = 1

Solving
-2c + 2c2 = 1

Solving for variable 'c'.

Reorder the terms:
-1 + -2c + 2c2 = 1 + -1

Combine like terms: 1 + -1 = 0
-1 + -2c + 2c2 = 0

Begin completing the square.  Divide all terms by
2 the coefficient of the squared term: 

Divide each side by '2'.
-0.5 + -1c + c2 = 0

Move the constant term to the right:

Add '0.5' to each side of the equation.
-0.5 + -1c + 0.5 + c2 = 0 + 0.5

Reorder the terms:
-0.5 + 0.5 + -1c + c2 = 0 + 0.5

Combine like terms: -0.5 + 0.5 = 0.0
0.0 + -1c + c2 = 0 + 0.5
-1c + c2 = 0 + 0.5

Combine like terms: 0 + 0.5 = 0.5
-1c + c2 = 0.5

The c term is -1c.  Take half its coefficient (-0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-1c + 0.25 + c2 = 0.5 + 0.25

Reorder the terms:
0.25 + -1c + c2 = 0.5 + 0.25

Combine like terms: 0.5 + 0.25 = 0.75
0.25 + -1c + c2 = 0.75

Factor a perfect square on the left side:
(c + -0.5)(c + -0.5) = 0.75

Calculate the square root of the right side: 0.866025404

Break this problem into two subproblems by setting 
(c + -0.5) equal to 0.866025404 and -0.866025404.

Subproblem 1

c + -0.5 = 0.866025404 Simplifying c + -0.5 = 0.866025404 Reorder the terms: -0.5 + c = 0.866025404 Solving -0.5 + c = 0.866025404 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + c = 0.866025404 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + c = 0.866025404 + 0.5 c = 0.866025404 + 0.5 Combine like terms: 0.866025404 + 0.5 = 1.366025404 c = 1.366025404 Simplifying c = 1.366025404

Subproblem 2

c + -0.5 = -0.866025404 Simplifying c + -0.5 = -0.866025404 Reorder the terms: -0.5 + c = -0.866025404 Solving -0.5 + c = -0.866025404 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + c = -0.866025404 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + c = -0.866025404 + 0.5 c = -0.866025404 + 0.5 Combine like terms: -0.866025404 + 0.5 = -0.366025404 c = -0.366025404 Simplifying c = -0.366025404

Solution

The solution to the problem is based on the solutions from the subproblems. c = {1.366025404, -0.366025404}

See similar equations:

| 215+39= | | 25*x+50-76=99 | | x-19=43 | | 8=-6.4g | | -9+3x+7x=-6.14 | | 7.1=s-58.3 | | y=-4x+11 | | x+(2x-5)+(2x+2)=62 | | r+42=8(r-10.5) | | 40*15+55-x=650 | | 50*6-x=190 | | -12=3(2x-10) | | x^6+2x^5-7x^4+4x^3= | | -5(4-3)=2(1-8)+11 | | y-x+y=-1 | | 21.42=-3x+6x+.43 | | 15+.39x=50 | | -.8a-8=.2a | | 24=6(7k-10) | | Y-87.4=0 | | 6x+20=4x-172 | | 60*x-35=325 | | 45=5(2x+7) | | 30*x+83=353 | | 24-64= | | w-13.7=22.8 | | 6+4x+6x=11.45 | | -1=2x-y | | 2+y/2=-1 | | 520/10+x=402 | | 3-7x-.25x=-4.25 | | x*9+74=146 |

Equations solver categories