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Simplifying 8x2 + -8x + 56 = 0 Reorder the terms: 56 + -8x + 8x2 = 0 Solving 56 + -8x + 8x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '8'. 8(7 + -1x + x2) = 0 Ignore the factor 8.Subproblem 1
Set the factor '(7 + -1x + x2)' equal to zero and attempt to solve: Simplifying 7 + -1x + x2 = 0 Solving 7 + -1x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-7' to each side of the equation. 7 + -1x + -7 + x2 = 0 + -7 Reorder the terms: 7 + -7 + -1x + x2 = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1x + x2 = 0 + -7 -1x + x2 = 0 + -7 Combine like terms: 0 + -7 = -7 -1x + x2 = -7 The x term is -1x. 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 = -7 + 0.25 Reorder the terms: 0.25 + -1x + x2 = -7 + 0.25 Combine like terms: -7 + 0.25 = -6.75 0.25 + -1x + x2 = -6.75 Factor a perfect square on the left side: (x + -0.5)(x + -0.5) = -6.75 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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