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Simplifying 3x2 + -5x + 3 = 2x2 + 3 + -12 Reorder the terms: 3 + -5x + 3x2 = 2x2 + 3 + -12 Reorder the terms: 3 + -5x + 3x2 = 3 + -12 + 2x2 Combine like terms: 3 + -12 = -9 3 + -5x + 3x2 = -9 + 2x2 Solving 3 + -5x + 3x2 = -9 + 2x2 Solving for variable 'x'. Reorder the terms: 3 + 9 + -5x + 3x2 + -2x2 = -9 + 2x2 + 9 + -2x2 Combine like terms: 3 + 9 = 12 12 + -5x + 3x2 + -2x2 = -9 + 2x2 + 9 + -2x2 Combine like terms: 3x2 + -2x2 = 1x2 12 + -5x + 1x2 = -9 + 2x2 + 9 + -2x2 Reorder the terms: 12 + -5x + 1x2 = -9 + 9 + 2x2 + -2x2 Combine like terms: -9 + 9 = 0 12 + -5x + 1x2 = 0 + 2x2 + -2x2 12 + -5x + 1x2 = 2x2 + -2x2 Combine like terms: 2x2 + -2x2 = 0 12 + -5x + 1x2 = 0 Begin completing the square. Move the constant term to the right: Add '-12' to each side of the equation. 12 + -5x + -12 + x2 = 0 + -12 Reorder the terms: 12 + -12 + -5x + x2 = 0 + -12 Combine like terms: 12 + -12 = 0 0 + -5x + x2 = 0 + -12 -5x + x2 = 0 + -12 Combine like terms: 0 + -12 = -12 -5x + x2 = -12 The x term is -5x. Take half its coefficient (-2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. -5x + 6.25 + x2 = -12 + 6.25 Reorder the terms: 6.25 + -5x + x2 = -12 + 6.25 Combine like terms: -12 + 6.25 = -5.75 6.25 + -5x + x2 = -5.75 Factor a perfect square on the left side: (x + -2.5)(x + -2.5) = -5.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
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