c^2+19c-180=

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Solution for c^2+19c-180= equation:


Simplifying
c2 + 19c + -180 = 0

Reorder the terms:
-180 + 19c + c2 = 0

Solving
-180 + 19c + c2 = 0

Solving for variable 'c'.

Begin completing the square.

Move the constant term to the right:

Add '180' to each side of the equation.
-180 + 19c + 180 + c2 = 0 + 180

Reorder the terms:
-180 + 180 + 19c + c2 = 0 + 180

Combine like terms: -180 + 180 = 0
0 + 19c + c2 = 0 + 180
19c + c2 = 0 + 180

Combine like terms: 0 + 180 = 180
19c + c2 = 180

The c term is 19c.  Take half its coefficient (9.5).
Square it (90.25) and add it to both sides.

Add '90.25' to each side of the equation.
19c + 90.25 + c2 = 180 + 90.25

Reorder the terms:
90.25 + 19c + c2 = 180 + 90.25

Combine like terms: 180 + 90.25 = 270.25
90.25 + 19c + c2 = 270.25

Factor a perfect square on the left side:
(c + 9.5)(c + 9.5) = 270.25

Calculate the square root of the right side: 16.439282223

Break this problem into two subproblems by setting 
(c + 9.5) equal to 16.439282223 and -16.439282223.

Subproblem 1

c + 9.5 = 16.439282223 Simplifying c + 9.5 = 16.439282223 Reorder the terms: 9.5 + c = 16.439282223 Solving 9.5 + c = 16.439282223 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-9.5' to each side of the equation. 9.5 + -9.5 + c = 16.439282223 + -9.5 Combine like terms: 9.5 + -9.5 = 0.0 0.0 + c = 16.439282223 + -9.5 c = 16.439282223 + -9.5 Combine like terms: 16.439282223 + -9.5 = 6.939282223 c = 6.939282223 Simplifying c = 6.939282223

Subproblem 2

c + 9.5 = -16.439282223 Simplifying c + 9.5 = -16.439282223 Reorder the terms: 9.5 + c = -16.439282223 Solving 9.5 + c = -16.439282223 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-9.5' to each side of the equation. 9.5 + -9.5 + c = -16.439282223 + -9.5 Combine like terms: 9.5 + -9.5 = 0.0 0.0 + c = -16.439282223 + -9.5 c = -16.439282223 + -9.5 Combine like terms: -16.439282223 + -9.5 = -25.939282223 c = -25.939282223 Simplifying c = -25.939282223

Solution

The solution to the problem is based on the solutions from the subproblems. c = {6.939282223, -25.939282223}

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