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Simplifying X2 + 4X + 480 = 0 Reorder the terms: 480 + 4X + X2 = 0 Solving 480 + 4X + X2 = 0 Solving for variable 'X'. Begin completing the square. Move the constant term to the right: Add '-480' to each side of the equation. 480 + 4X + -480 + X2 = 0 + -480 Reorder the terms: 480 + -480 + 4X + X2 = 0 + -480 Combine like terms: 480 + -480 = 0 0 + 4X + X2 = 0 + -480 4X + X2 = 0 + -480 Combine like terms: 0 + -480 = -480 4X + X2 = -480 The X term is 4X. Take half its coefficient (2). Square it (4) and add it to both sides. Add '4' to each side of the equation. 4X + 4 + X2 = -480 + 4 Reorder the terms: 4 + 4X + X2 = -480 + 4 Combine like terms: -480 + 4 = -476 4 + 4X + X2 = -476 Factor a perfect square on the left side: (X + 2)(X + 2) = -476 Can't calculate square root of the right side. The solution to this equation could not be determined.
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