15=3c(16-3c)

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Solution for 15=3c(16-3c) equation:


Simplifying
15 = 3c(16 + -3c)
15 = (16 * 3c + -3c * 3c)
15 = (48c + -9c2)

Solving
15 = 48c + -9c2

Solving for variable 'c'.

Reorder the terms:
15 + -48c + 9c2 = 48c + -48c + -9c2 + 9c2

Combine like terms: 48c + -48c = 0
15 + -48c + 9c2 = 0 + -9c2 + 9c2
15 + -48c + 9c2 = -9c2 + 9c2

Combine like terms: -9c2 + 9c2 = 0
15 + -48c + 9c2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(5 + -16c + 3c2) = 0

Factor a trinomial.
3((1 + -3c)(5 + -1c)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(1 + -3c)' equal to zero and attempt to solve: Simplifying 1 + -3c = 0 Solving 1 + -3c = 0 Move all terms containing c to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -3c = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -3c = 0 + -1 -3c = 0 + -1 Combine like terms: 0 + -1 = -1 -3c = -1 Divide each side by '-3'. c = 0.3333333333 Simplifying c = 0.3333333333

Subproblem 2

Set the factor '(5 + -1c)' equal to zero and attempt to solve: Simplifying 5 + -1c = 0 Solving 5 + -1c = 0 Move all terms containing c to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1c = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1c = 0 + -5 -1c = 0 + -5 Combine like terms: 0 + -5 = -5 -1c = -5 Divide each side by '-1'. c = 5 Simplifying c = 5

Solution

c = {0.3333333333, 5}

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