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Simplifying x2 + -1x4 = 0.99 Solving x2 + -1x4 = 0.99 Solving for variable 'x'. Reorder the terms: -0.99 + x2 + -1x4 = 0.99 + -0.99 Combine like terms: 0.99 + -0.99 = 0.00 -0.99 + x2 + -1x4 = 0.00 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 0.99 + -1x2 + x4 = 0.00 Move the constant term to the right: Add '-0.99' to each side of the equation. 0.99 + -1x2 + -0.99 + x4 = 0.00 + -0.99 Reorder the terms: 0.99 + -0.99 + -1x2 + x4 = 0.00 + -0.99 Combine like terms: 0.99 + -0.99 = 0.00 0.00 + -1x2 + x4 = 0.00 + -0.99 -1x2 + x4 = 0.00 + -0.99 Combine like terms: 0.00 + -0.99 = -0.99 -1x2 + x4 = -0.99 The x term is x2. 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. -1x2 + 0.25 + x4 = -0.99 + 0.25 Reorder the terms: 0.25 + -1x2 + x4 = -0.99 + 0.25 Combine like terms: -0.99 + 0.25 = -0.74 0.25 + -1x2 + x4 = -0.74 Factor a perfect square on the left side: (x2 + 0.5)(x2 + 0.5) = -0.74 Can't calculate square root of the right side. The solution to this equation could not be determined.
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