c^2-2c-143=0

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Solution for c^2-2c-143=0 equation: 


Simplifying
c2 + -2c + -143 = 0

Reorder the terms:
-143 + -2c + c2 = 0

Solving
-143 + -2c + c2 = 0

Solving for variable 'c'.

Factor a trinomial.
(-11 + -1c)(13 + -1c) = 0


Subproblem 1
Set the factor '(-11 + -1c)' equal to zero and attempt to solve:

Simplifying
-11 + -1c = 0

Solving
-11 + -1c = 0

Move all terms containing c to the left, all other terms to the right.

Add '11' to each side of the equation.
-11 + 11 + -1c = 0 + 11

Combine like terms: -11 + 11 = 0
0 + -1c = 0 + 11
-1c = 0 + 11

Combine like terms: 0 + 11 = 11
-1c = 11

Divide each side by '-1'.
c = -11

Simplifying
c = -11

Subproblem 2
Set the factor '(13 + -1c)' equal to zero and attempt to solve:

Simplifying
13 + -1c = 0

Solving
13 + -1c = 0

Move all terms containing c to the left, all other terms to the right.

Add '-13' to each side of the equation.
13 + -13 + -1c = 0 + -13

Combine like terms: 13 + -13 = 0
0 + -1c = 0 + -13
-1c = 0 + -13

Combine like terms: 0 + -13 = -13
-1c = -13

Divide each side by '-1'.
c = 13

Simplifying
c = 13
Solution
c = {-11, 13}

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