(c-36)(c+81)=0

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Solution for (c-36)(c+81)=0 equation:


Simplifying
(c + -36)(c + 81) = 0

Reorder the terms:
(-36 + c)(c + 81) = 0

Reorder the terms:
(-36 + c)(81 + c) = 0

Multiply (-36 + c) * (81 + c)
(-36(81 + c) + c(81 + c)) = 0
((81 * -36 + c * -36) + c(81 + c)) = 0
((-2916 + -36c) + c(81 + c)) = 0
(-2916 + -36c + (81 * c + c * c)) = 0
(-2916 + -36c + (81c + c2)) = 0

Combine like terms: -36c + 81c = 45c
(-2916 + 45c + c2) = 0

Solving
-2916 + 45c + c2 = 0

Solving for variable 'c'.

Factor a trinomial.
(-81 + -1c)(36 + -1c) = 0

Subproblem 1

Set the factor '(-81 + -1c)' equal to zero and attempt to solve: Simplifying -81 + -1c = 0 Solving -81 + -1c = 0 Move all terms containing c to the left, all other terms to the right. Add '81' to each side of the equation. -81 + 81 + -1c = 0 + 81 Combine like terms: -81 + 81 = 0 0 + -1c = 0 + 81 -1c = 0 + 81 Combine like terms: 0 + 81 = 81 -1c = 81 Divide each side by '-1'. c = -81 Simplifying c = -81

Subproblem 2

Set the factor '(36 + -1c)' equal to zero and attempt to solve: Simplifying 36 + -1c = 0 Solving 36 + -1c = 0 Move all terms containing c to the left, all other terms to the right. Add '-36' to each side of the equation. 36 + -36 + -1c = 0 + -36 Combine like terms: 36 + -36 = 0 0 + -1c = 0 + -36 -1c = 0 + -36 Combine like terms: 0 + -36 = -36 -1c = -36 Divide each side by '-1'. c = 36 Simplifying c = 36

Solution

c = {-81, 36}

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