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Simplifying -8x2 + 8x = 8 Reorder the terms: 8x + -8x2 = 8 Solving 8x + -8x2 = 8 Solving for variable 'x'. Reorder the terms: -8 + 8x + -8x2 = 8 + -8 Combine like terms: 8 + -8 = 0 -8 + 8x + -8x2 = 0 Factor out the Greatest Common Factor (GCF), '8'. 8(-1 + x + -1x2) = 0 Ignore the factor 8.Subproblem 1
Set the factor '(-1 + x + -1x2)' equal to zero and attempt to solve: Simplifying -1 + x + -1x2 = 0 Solving -1 + x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 1 + -1x + x2 = 0 Move the constant term to the right: Add '-1' to each side of the equation. 1 + -1x + -1 + x2 = 0 + -1 Reorder the terms: 1 + -1 + -1x + x2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1x + x2 = 0 + -1 -1x + x2 = 0 + -1 Combine like terms: 0 + -1 = -1 -1x + x2 = -1 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. -1x + 0.25 + x2 = -1 + 0.25 Reorder the terms: 0.25 + -1x + x2 = -1 + 0.25 Combine like terms: -1 + 0.25 = -0.75 0.25 + -1x + x2 = -0.75 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = -0.75 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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