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Simplifying 5x2 + -5x + 8 = 2 Reorder the terms: 8 + -5x + 5x2 = 2 Solving 8 + -5x + 5x2 = 2 Solving for variable 'x'. Reorder the terms: 8 + -2 + -5x + 5x2 = 2 + -2 Combine like terms: 8 + -2 = 6 6 + -5x + 5x2 = 2 + -2 Combine like terms: 2 + -2 = 0 6 + -5x + 5x2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. 1.2 + -1x + x2 = 0 Move the constant term to the right: Add '-1.2' to each side of the equation. 1.2 + -1x + -1.2 + x2 = 0 + -1.2 Reorder the terms: 1.2 + -1.2 + -1x + x2 = 0 + -1.2 Combine like terms: 1.2 + -1.2 = 0.0 0.0 + -1x + x2 = 0 + -1.2 -1x + x2 = 0 + -1.2 Combine like terms: 0 + -1.2 = -1.2 -1x + x2 = -1.2 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 = -1.2 + 0.25 Reorder the terms: 0.25 + -1x + x2 = -1.2 + 0.25 Combine like terms: -1.2 + 0.25 = -0.95 0.25 + -1x + x2 = -0.95 Factor a perfect square on the left side: (x + -0.5)(x + -0.5) = -0.95 Can't calculate square root of the right side. The solution to this equation could not be determined.
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