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Simplifying X2 + 3X + 222 = 0 Reorder the terms: 222 + 3X + X2 = 0 Solving 222 + 3X + X2 = 0 Solving for variable 'X'. Begin completing the square. Move the constant term to the right: Add '-222' to each side of the equation. 222 + 3X + -222 + X2 = 0 + -222 Reorder the terms: 222 + -222 + 3X + X2 = 0 + -222 Combine like terms: 222 + -222 = 0 0 + 3X + X2 = 0 + -222 3X + X2 = 0 + -222 Combine like terms: 0 + -222 = -222 3X + X2 = -222 The X term is 3X. Take half its coefficient (1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. 3X + 2.25 + X2 = -222 + 2.25 Reorder the terms: 2.25 + 3X + X2 = -222 + 2.25 Combine like terms: -222 + 2.25 = -219.75 2.25 + 3X + X2 = -219.75 Factor a perfect square on the left side: (X + 1.5)(X + 1.5) = -219.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
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