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Simplifying 4c2 + -15c + -25 = 0 Reorder the terms: -25 + -15c + 4c2 = 0 Solving -25 + -15c + 4c2 = 0 Solving for variable 'c'. Factor a trinomial. (-5 + -4c)(5 + -1c) = 0Subproblem 1
Set the factor '(-5 + -4c)' equal to zero and attempt to solve: Simplifying -5 + -4c = 0 Solving -5 + -4c = 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 + -4c = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -4c = 0 + 5 -4c = 0 + 5 Combine like terms: 0 + 5 = 5 -4c = 5 Divide each side by '-4'. c = -1.25 Simplifying c = -1.25Subproblem 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 = 5Solution
c = {-1.25, 5}
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