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Simplifying x2 + 840x + 5248000 = 1219200 Reorder the terms: 5248000 + 840x + x2 = 1219200 Solving 5248000 + 840x + x2 = 1219200 Solving for variable 'x'. Reorder the terms: 5248000 + -1219200 + 840x + x2 = 1219200 + -1219200 Combine like terms: 5248000 + -1219200 = 4028800 4028800 + 840x + x2 = 1219200 + -1219200 Combine like terms: 1219200 + -1219200 = 0 4028800 + 840x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-4028800' to each side of the equation. 4028800 + 840x + -4028800 + x2 = 0 + -4028800 Reorder the terms: 4028800 + -4028800 + 840x + x2 = 0 + -4028800 Combine like terms: 4028800 + -4028800 = 0 0 + 840x + x2 = 0 + -4028800 840x + x2 = 0 + -4028800 Combine like terms: 0 + -4028800 = -4028800 840x + x2 = -4028800 The x term is 840x. Take half its coefficient (420). Square it (176400) and add it to both sides. Add '176400' to each side of the equation. 840x + 176400 + x2 = -4028800 + 176400 Reorder the terms: 176400 + 840x + x2 = -4028800 + 176400 Combine like terms: -4028800 + 176400 = -3852400 176400 + 840x + x2 = -3852400 Factor a perfect square on the left side: (x + 420)(x + 420) = -3852400 Can't calculate square root of the right side. The solution to this equation could not be determined.
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