81c^2-72c+16=

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Solution for 81c^2-72c+16= equation:


Simplifying
81c2 + -72c + 16 = 0

Reorder the terms:
16 + -72c + 81c2 = 0

Solving
16 + -72c + 81c2 = 0

Solving for variable 'c'.

Factor a trinomial.
(4 + -9c)(4 + -9c) = 0

Subproblem 1

Set the factor '(4 + -9c)' equal to zero and attempt to solve: Simplifying 4 + -9c = 0 Solving 4 + -9c = 0 Move all terms containing c to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -9c = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -9c = 0 + -4 -9c = 0 + -4 Combine like terms: 0 + -4 = -4 -9c = -4 Divide each side by '-9'. c = 0.4444444444 Simplifying c = 0.4444444444

Subproblem 2

Set the factor '(4 + -9c)' equal to zero and attempt to solve: Simplifying 4 + -9c = 0 Solving 4 + -9c = 0 Move all terms containing c to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -9c = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -9c = 0 + -4 -9c = 0 + -4 Combine like terms: 0 + -4 = -4 -9c = -4 Divide each side by '-9'. c = 0.4444444444 Simplifying c = 0.4444444444

Solution

c = {0.4444444444, 0.4444444444}

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