128c^2+448c+392=0

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Solution for 128c^2+448c+392=0 equation:


Simplifying
128c2 + 448c + 392 = 0

Reorder the terms:
392 + 448c + 128c2 = 0

Solving
392 + 448c + 128c2 = 0

Solving for variable 'c'.

Factor out the Greatest Common Factor (GCF), '8'.
8(49 + 56c + 16c2) = 0

Factor a trinomial.
8((7 + 4c)(7 + 4c)) = 0

Ignore the factor 8.

Subproblem 1

Set the factor '(7 + 4c)' equal to zero and attempt to solve: Simplifying 7 + 4c = 0 Solving 7 + 4c = 0 Move all terms containing c to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 4c = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 4c = 0 + -7 4c = 0 + -7 Combine like terms: 0 + -7 = -7 4c = -7 Divide each side by '4'. c = -1.75 Simplifying c = -1.75

Subproblem 2

Set the factor '(7 + 4c)' equal to zero and attempt to solve: Simplifying 7 + 4c = 0 Solving 7 + 4c = 0 Move all terms containing c to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + 4c = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 4c = 0 + -7 4c = 0 + -7 Combine like terms: 0 + -7 = -7 4c = -7 Divide each side by '4'. c = -1.75 Simplifying c = -1.75

Solution

c = {-1.75, -1.75}

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