42c^3-138c^2+36c=

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Solution for 42c^3-138c^2+36c= equation:


Simplifying
42c3 + -138c2 + 36c = 0

Reorder the terms:
36c + -138c2 + 42c3 = 0

Solving
36c + -138c2 + 42c3 = 0

Solving for variable 'c'.

Factor out the Greatest Common Factor (GCF), '6c'.
6c(6 + -23c + 7c2) = 0

Factor a trinomial.
6c((2 + -7c)(3 + -1c)) = 0

Ignore the factor 6.

Subproblem 1

Set the factor 'c' equal to zero and attempt to solve: Simplifying c = 0 Solving c = 0 Move all terms containing c to the left, all other terms to the right. Simplifying c = 0

Subproblem 2

Set the factor '(2 + -7c)' equal to zero and attempt to solve: Simplifying 2 + -7c = 0 Solving 2 + -7c = 0 Move all terms containing c to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -7c = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -7c = 0 + -2 -7c = 0 + -2 Combine like terms: 0 + -2 = -2 -7c = -2 Divide each side by '-7'. c = 0.2857142857 Simplifying c = 0.2857142857

Subproblem 3

Set the factor '(3 + -1c)' equal to zero and attempt to solve: Simplifying 3 + -1c = 0 Solving 3 + -1c = 0 Move all terms containing c to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1c = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1c = 0 + -3 -1c = 0 + -3 Combine like terms: 0 + -3 = -3 -1c = -3 Divide each side by '-1'. c = 3 Simplifying c = 3

Solution

c = {0, 0.2857142857, 3}

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