c^2-6c-3=0

Simple and best practice solution for c^2-6c-3=0 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 c^2-6c-3=0 equation:


Simplifying
c2 + -6c + -3 = 0

Reorder the terms:
-3 + -6c + c2 = 0

Solving
-3 + -6c + c2 = 0

Solving for variable 'c'.

Begin completing the square.

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + -6c + 3 + c2 = 0 + 3

Reorder the terms:
-3 + 3 + -6c + c2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -6c + c2 = 0 + 3
-6c + c2 = 0 + 3

Combine like terms: 0 + 3 = 3
-6c + c2 = 3

The c term is -6c.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6c + 9 + c2 = 3 + 9

Reorder the terms:
9 + -6c + c2 = 3 + 9

Combine like terms: 3 + 9 = 12
9 + -6c + c2 = 12

Factor a perfect square on the left side:
(c + -3)(c + -3) = 12

Calculate the square root of the right side: 3.464101615

Break this problem into two subproblems by setting 
(c + -3) equal to 3.464101615 and -3.464101615.

Subproblem 1

c + -3 = 3.464101615 Simplifying c + -3 = 3.464101615 Reorder the terms: -3 + c = 3.464101615 Solving -3 + c = 3.464101615 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + c = 3.464101615 + 3 Combine like terms: -3 + 3 = 0 0 + c = 3.464101615 + 3 c = 3.464101615 + 3 Combine like terms: 3.464101615 + 3 = 6.464101615 c = 6.464101615 Simplifying c = 6.464101615

Subproblem 2

c + -3 = -3.464101615 Simplifying c + -3 = -3.464101615 Reorder the terms: -3 + c = -3.464101615 Solving -3 + c = -3.464101615 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + c = -3.464101615 + 3 Combine like terms: -3 + 3 = 0 0 + c = -3.464101615 + 3 c = -3.464101615 + 3 Combine like terms: -3.464101615 + 3 = -0.464101615 c = -0.464101615 Simplifying c = -0.464101615

Solution

The solution to the problem is based on the solutions from the subproblems. c = {6.464101615, -0.464101615}

See similar equations:

| 3x-6=4x-12 | | x+4/x+4/x+2=14 | | x+(4/x)+(4/x)+2=14 | | 10x-97=23 | | x+(4/x)+2+(4/x)=14 | | 97-10x=23 | | x^2+4=x^2+x^2+1 | | x+(4/x)+(2-4/x)=14 | | x+7/2=x-3/6 | | 2x-9=4x-9 | | x+(4/x)+(4/x-2)=14 | | -11=-11(h-5) | | d^2-13d=48 | | v(x)=x(60-2x) | | -250=-10(-5b) | | x+(4/x)+2-(4/x)=14 | | 20m^2-45m=0 | | 4s-6s=12 | | 5x/8+18=10 | | 10s-18s=32 | | -2+13=4b-8-3b | | x+(x/4)-2-(x/4)=14 | | 9.5-.75x=0 | | x+(x/4)+(x/4)-2=14 | | 9.5-.75x=4.75 | | 3+2(4n+2)-n= | | 90+9h-4=15h-7-3h | | x+(x/4)+2-(x/4)=14 | | 3(4x-3)-4(3-4)=4-7x | | 4x-2/3x=5 | | y=33x+4458 | | 16+9w=76+24w |

Equations solver categories