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Simplifying C2 + -24C + 225 = 0 Reorder the terms: 225 + -24C + C2 = 0 Solving 225 + -24C + C2 = 0 Solving for variable 'C'. Begin completing the square. Move the constant term to the right: Add '-225' to each side of the equation. 225 + -24C + -225 + C2 = 0 + -225 Reorder the terms: 225 + -225 + -24C + C2 = 0 + -225 Combine like terms: 225 + -225 = 0 0 + -24C + C2 = 0 + -225 -24C + C2 = 0 + -225 Combine like terms: 0 + -225 = -225 -24C + C2 = -225 The C term is -24C. Take half its coefficient (-12). Square it (144) and add it to both sides. Add '144' to each side of the equation. -24C + 144 + C2 = -225 + 144 Reorder the terms: 144 + -24C + C2 = -225 + 144 Combine like terms: -225 + 144 = -81 144 + -24C + C2 = -81 Factor a perfect square on the left side: (C + -12)(C + -12) = -81 Can't calculate square root of the right side. The solution to this equation could not be determined.
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