C^2+10C=10

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Solution for C^2+10C=10 equation:


Simplifying
C2 + 10C = 10

Reorder the terms:
10C + C2 = 10

Solving
10C + C2 = 10

Solving for variable 'C'.

Reorder the terms:
-10 + 10C + C2 = 10 + -10

Combine like terms: 10 + -10 = 0
-10 + 10C + C2 = 0

Begin completing the square.

Move the constant term to the right:

Add '10' to each side of the equation.
-10 + 10C + 10 + C2 = 0 + 10

Reorder the terms:
-10 + 10 + 10C + C2 = 0 + 10

Combine like terms: -10 + 10 = 0
0 + 10C + C2 = 0 + 10
10C + C2 = 0 + 10

Combine like terms: 0 + 10 = 10
10C + C2 = 10

The C term is 10C.  Take half its coefficient (5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
10C + 25 + C2 = 10 + 25

Reorder the terms:
25 + 10C + C2 = 10 + 25

Combine like terms: 10 + 25 = 35
25 + 10C + C2 = 35

Factor a perfect square on the left side:
(C + 5)(C + 5) = 35

Calculate the square root of the right side: 5.916079783

Break this problem into two subproblems by setting 
(C + 5) equal to 5.916079783 and -5.916079783.

Subproblem 1

C + 5 = 5.916079783 Simplifying C + 5 = 5.916079783 Reorder the terms: 5 + C = 5.916079783 Solving 5 + C = 5.916079783 Solving for variable 'C'. Move all terms containing C to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + C = 5.916079783 + -5 Combine like terms: 5 + -5 = 0 0 + C = 5.916079783 + -5 C = 5.916079783 + -5 Combine like terms: 5.916079783 + -5 = 0.916079783 C = 0.916079783 Simplifying C = 0.916079783

Subproblem 2

C + 5 = -5.916079783 Simplifying C + 5 = -5.916079783 Reorder the terms: 5 + C = -5.916079783 Solving 5 + C = -5.916079783 Solving for variable 'C'. Move all terms containing C to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + C = -5.916079783 + -5 Combine like terms: 5 + -5 = 0 0 + C = -5.916079783 + -5 C = -5.916079783 + -5 Combine like terms: -5.916079783 + -5 = -10.916079783 C = -10.916079783 Simplifying C = -10.916079783

Solution

The solution to the problem is based on the solutions from the subproblems. C = {0.916079783, -10.916079783}

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