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Simplifying 4x2 + -6x + 57 = 19 Reorder the terms: 57 + -6x + 4x2 = 19 Solving 57 + -6x + 4x2 = 19 Solving for variable 'x'. Reorder the terms: 57 + -19 + -6x + 4x2 = 19 + -19 Combine like terms: 57 + -19 = 38 38 + -6x + 4x2 = 19 + -19 Combine like terms: 19 + -19 = 0 38 + -6x + 4x2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(19 + -3x + 2x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(19 + -3x + 2x2)' equal to zero and attempt to solve: Simplifying 19 + -3x + 2x2 = 0 Solving 19 + -3x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. 9.5 + -1.5x + x2 = 0 Move the constant term to the right: Add '-9.5' to each side of the equation. 9.5 + -1.5x + -9.5 + x2 = 0 + -9.5 Reorder the terms: 9.5 + -9.5 + -1.5x + x2 = 0 + -9.5 Combine like terms: 9.5 + -9.5 = 0.0 0.0 + -1.5x + x2 = 0 + -9.5 -1.5x + x2 = 0 + -9.5 Combine like terms: 0 + -9.5 = -9.5 -1.5x + x2 = -9.5 The x term is -1.5x. Take half its coefficient (-0.75). Square it (0.5625) and add it to both sides. Add '0.5625' to each side of the equation. -1.5x + 0.5625 + x2 = -9.5 + 0.5625 Reorder the terms: 0.5625 + -1.5x + x2 = -9.5 + 0.5625 Combine like terms: -9.5 + 0.5625 = -8.9375 0.5625 + -1.5x + x2 = -8.9375 Factor a perfect square on the left side: (x + -0.75)(x + -0.75) = -8.9375 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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