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Simplifying x(2x + -1) = 2x + 2 + 5x + -12 Reorder the terms: x(-1 + 2x) = 2x + 2 + 5x + -12 (-1 * x + 2x * x) = 2x + 2 + 5x + -12 (-1x + 2x2) = 2x + 2 + 5x + -12 Reorder the terms: -1x + 2x2 = 2 + -12 + 2x + 5x Combine like terms: 2 + -12 = -10 -1x + 2x2 = -10 + 2x + 5x Combine like terms: 2x + 5x = 7x -1x + 2x2 = -10 + 7x Solving -1x + 2x2 = -10 + 7x Solving for variable 'x'. Reorder the terms: 10 + -1x + -7x + 2x2 = -10 + 7x + 10 + -7x Combine like terms: -1x + -7x = -8x 10 + -8x + 2x2 = -10 + 7x + 10 + -7x Reorder the terms: 10 + -8x + 2x2 = -10 + 10 + 7x + -7x Combine like terms: -10 + 10 = 0 10 + -8x + 2x2 = 0 + 7x + -7x 10 + -8x + 2x2 = 7x + -7x Combine like terms: 7x + -7x = 0 10 + -8x + 2x2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(5 + -4x + x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(5 + -4x + x2)' equal to zero and attempt to solve: Simplifying 5 + -4x + x2 = 0 Solving 5 + -4x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-5' to each side of the equation. 5 + -4x + -5 + x2 = 0 + -5 Reorder the terms: 5 + -5 + -4x + x2 = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -4x + x2 = 0 + -5 -4x + x2 = 0 + -5 Combine like terms: 0 + -5 = -5 -4x + x2 = -5 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 = -5 + 4 Reorder the terms: 4 + -4x + x2 = -5 + 4 Combine like terms: -5 + 4 = -1 4 + -4x + x2 = -1 Factor a perfect square on the left side: (x + -2)(x + -2) = -1 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.
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