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Simplifying 2x + -7 = x2 + -3x + 4 Reorder the terms: -7 + 2x = x2 + -3x + 4 Reorder the terms: -7 + 2x = 4 + -3x + x2 Solving -7 + 2x = 4 + -3x + x2 Solving for variable 'x'. Reorder the terms: -7 + -4 + 2x + 3x + -1x2 = 4 + -3x + x2 + -4 + 3x + -1x2 Combine like terms: -7 + -4 = -11 -11 + 2x + 3x + -1x2 = 4 + -3x + x2 + -4 + 3x + -1x2 Combine like terms: 2x + 3x = 5x -11 + 5x + -1x2 = 4 + -3x + x2 + -4 + 3x + -1x2 Reorder the terms: -11 + 5x + -1x2 = 4 + -4 + -3x + 3x + x2 + -1x2 Combine like terms: 4 + -4 = 0 -11 + 5x + -1x2 = 0 + -3x + 3x + x2 + -1x2 -11 + 5x + -1x2 = -3x + 3x + x2 + -1x2 Combine like terms: -3x + 3x = 0 -11 + 5x + -1x2 = 0 + x2 + -1x2 -11 + 5x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -11 + 5x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 11 + -5x + x2 = 0 Move the constant term to the right: Add '-11' to each side of the equation. 11 + -5x + -11 + x2 = 0 + -11 Reorder the terms: 11 + -11 + -5x + x2 = 0 + -11 Combine like terms: 11 + -11 = 0 0 + -5x + x2 = 0 + -11 -5x + x2 = 0 + -11 Combine like terms: 0 + -11 = -11 -5x + x2 = -11 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 = -11 + 6.25 Reorder the terms: 6.25 + -5x + x2 = -11 + 6.25 Combine like terms: -11 + 6.25 = -4.75 6.25 + -5x + x2 = -4.75 Factor a perfect square on the left side: (x + -2.5)(x + -2.5) = -4.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
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