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Simplifying 8x2 + 2x + 68 = 0 Reorder the terms: 68 + 2x + 8x2 = 0 Solving 68 + 2x + 8x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '2'. 2(34 + x + 4x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(34 + x + 4x2)' equal to zero and attempt to solve: Simplifying 34 + x + 4x2 = 0 Solving 34 + x + 4x2 = 0 Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. 8.5 + 0.25x + x2 = 0 Move the constant term to the right: Add '-8.5' to each side of the equation. 8.5 + 0.25x + -8.5 + x2 = 0 + -8.5 Reorder the terms: 8.5 + -8.5 + 0.25x + x2 = 0 + -8.5 Combine like terms: 8.5 + -8.5 = 0.0 0.0 + 0.25x + x2 = 0 + -8.5 0.25x + x2 = 0 + -8.5 Combine like terms: 0 + -8.5 = -8.5 0.25x + x2 = -8.5 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. 0.25x + 0.25 + x2 = -8.5 + 0.25 Reorder the terms: 0.25 + 0.25x + x2 = -8.5 + 0.25 Combine like terms: -8.5 + 0.25 = -8.25 0.25 + 0.25x + x2 = -8.25 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = -8.25 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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