c^2-8c=36+8

Simple and best practice solution for c^2-8c=36+8 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^2-8c=36+8 equation:


Simplifying
c2 + -8c = 36 + 8

Reorder the terms:
-8c + c2 = 36 + 8

Combine like terms: 36 + 8 = 44
-8c + c2 = 44

Solving
-8c + c2 = 44

Solving for variable 'c'.

Reorder the terms:
-44 + -8c + c2 = 44 + -44

Combine like terms: 44 + -44 = 0
-44 + -8c + c2 = 0

Begin completing the square.

Move the constant term to the right:

Add '44' to each side of the equation.
-44 + -8c + 44 + c2 = 0 + 44

Reorder the terms:
-44 + 44 + -8c + c2 = 0 + 44

Combine like terms: -44 + 44 = 0
0 + -8c + c2 = 0 + 44
-8c + c2 = 0 + 44

Combine like terms: 0 + 44 = 44
-8c + c2 = 44

The c term is -8c.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8c + 16 + c2 = 44 + 16

Reorder the terms:
16 + -8c + c2 = 44 + 16

Combine like terms: 44 + 16 = 60
16 + -8c + c2 = 60

Factor a perfect square on the left side:
(c + -4)(c + -4) = 60

Calculate the square root of the right side: 7.745966692

Break this problem into two subproblems by setting 
(c + -4) equal to 7.745966692 and -7.745966692.

Subproblem 1

c + -4 = 7.745966692 Simplifying c + -4 = 7.745966692 Reorder the terms: -4 + c = 7.745966692 Solving -4 + c = 7.745966692 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + c = 7.745966692 + 4 Combine like terms: -4 + 4 = 0 0 + c = 7.745966692 + 4 c = 7.745966692 + 4 Combine like terms: 7.745966692 + 4 = 11.745966692 c = 11.745966692 Simplifying c = 11.745966692

Subproblem 2

c + -4 = -7.745966692 Simplifying c + -4 = -7.745966692 Reorder the terms: -4 + c = -7.745966692 Solving -4 + c = -7.745966692 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + c = -7.745966692 + 4 Combine like terms: -4 + 4 = 0 0 + c = -7.745966692 + 4 c = -7.745966692 + 4 Combine like terms: -7.745966692 + 4 = -3.745966692 c = -3.745966692 Simplifying c = -3.745966692

Solution

The solution to the problem is based on the solutions from the subproblems. c = {11.745966692, -3.745966692}

See similar equations:

| 6(8)-y=7 | | 7+11=-5 | | 55-4x=8x | | 25+9x=-23+15x | | 6(13)-y=7 | | x^2+2x-3=y | | 2x^2+5x-12=3x-8x^2 | | 7(k-5)=42 | | 6(0)-y=7 | | 5/16=t/35 | | k-26.7=12.8 | | 6(12)-y=7 | | 6(-4)-y=7 | | 2p-6x= | | 6(6)-y=7 | | 2x+2=-10 | | 6(2)-y=7 | | X^4+90=19x^2 | | 6(3)-y=7 | | -2x-6=-10 | | 6x-(5)=7 | | 2(x+1)-2(x+1)=x+1 | | 3z-8=z-4 | | (2y+3)(y+3)=-5(2y+3) | | 6x-(17)=7 | | 6x-(11)=7 | | x^2+5=-3x | | -36+4x=-5x+45 | | -27+x=12-5(x+3) | | 11h-5h-12=6 | | |5x+13|=-7 | | S^2-2s+1-6d^2=0 |

Equations solver categories