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Simplifying c2 + -4c + 54 = 0 Reorder the terms: 54 + -4c + c2 = 0 Solving 54 + -4c + c2 = 0 Solving for variable 'c'. Begin completing the square. Move the constant term to the right: Add '-54' to each side of the equation. 54 + -4c + -54 + c2 = 0 + -54 Reorder the terms: 54 + -54 + -4c + c2 = 0 + -54 Combine like terms: 54 + -54 = 0 0 + -4c + c2 = 0 + -54 -4c + c2 = 0 + -54 Combine like terms: 0 + -54 = -54 -4c + c2 = -54 The c term is -4c. Take half its coefficient (-2). Square it (4) and add it to both sides. Add '4' to each side of the equation. -4c + 4 + c2 = -54 + 4 Reorder the terms: 4 + -4c + c2 = -54 + 4 Combine like terms: -54 + 4 = -50 4 + -4c + c2 = -50 Factor a perfect square on the left side: (c + -2)(c + -2) = -50 Can't calculate square root of the right side. The solution to this equation could not be determined.
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