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Simplifying 9 + -8x2 = 6x + 14 Reorder the terms: 9 + -8x2 = 14 + 6x Solving 9 + -8x2 = 14 + 6x Solving for variable 'x'. Reorder the terms: 9 + -14 + -6x + -8x2 = 14 + 6x + -14 + -6x Combine like terms: 9 + -14 = -5 -5 + -6x + -8x2 = 14 + 6x + -14 + -6x Reorder the terms: -5 + -6x + -8x2 = 14 + -14 + 6x + -6x Combine like terms: 14 + -14 = 0 -5 + -6x + -8x2 = 0 + 6x + -6x -5 + -6x + -8x2 = 6x + -6x Combine like terms: 6x + -6x = 0 -5 + -6x + -8x2 = 0 Factor out the Greatest Common Factor (GCF), '-1'. -1(5 + 6x + 8x2) = 0 Ignore the factor -1.Subproblem 1
Set the factor '(5 + 6x + 8x2)' equal to zero and attempt to solve: Simplifying 5 + 6x + 8x2 = 0 Solving 5 + 6x + 8x2 = 0 Begin completing the square. Divide all terms by 8 the coefficient of the squared term: Divide each side by '8'. 0.625 + 0.75x + x2 = 0 Move the constant term to the right: Add '-0.625' to each side of the equation. 0.625 + 0.75x + -0.625 + x2 = 0 + -0.625 Reorder the terms: 0.625 + -0.625 + 0.75x + x2 = 0 + -0.625 Combine like terms: 0.625 + -0.625 = 0.000 0.000 + 0.75x + x2 = 0 + -0.625 0.75x + x2 = 0 + -0.625 Combine like terms: 0 + -0.625 = -0.625 0.75x + x2 = -0.625 The x term is 0.75x. Take half its coefficient (0.375). Square it (0.140625) and add it to both sides. Add '0.140625' to each side of the equation. 0.75x + 0.140625 + x2 = -0.625 + 0.140625 Reorder the terms: 0.140625 + 0.75x + x2 = -0.625 + 0.140625 Combine like terms: -0.625 + 0.140625 = -0.484375 0.140625 + 0.75x + x2 = -0.484375 Factor a perfect square on the left side: (x + 0.375)(x + 0.375) = -0.484375 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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