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Simplifying -0.0005x2 + 25x + -1000000 = 0 Reorder the terms: -1000000 + 25x + -0.0005x2 = 0 Solving -1000000 + 25x + -0.0005x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -0.0005 the coefficient of the squared term: Divide each side by '-0.0005'. 2000000000 + -50000x + x2 = 0 Move the constant term to the right: Add '-2000000000' to each side of the equation. 2000000000 + -50000x + -2000000000 + x2 = 0 + -2000000000 Reorder the terms: 2000000000 + -2000000000 + -50000x + x2 = 0 + -2000000000 Combine like terms: 2000000000 + -2000000000 = 0 0 + -50000x + x2 = 0 + -2000000000 -50000x + x2 = 0 + -2000000000 Combine like terms: 0 + -2000000000 = -2000000000 -50000x + x2 = -2000000000 The x term is -50000x. Take half its coefficient (-25000). Square it (625000000) and add it to both sides. Add '625000000' to each side of the equation. -50000x + 625000000 + x2 = -2000000000 + 625000000 Reorder the terms: 625000000 + -50000x + x2 = -2000000000 + 625000000 Combine like terms: -2000000000 + 625000000 = -1375000000 625000000 + -50000x + x2 = -1375000000 Factor a perfect square on the left side: (x + -25000)(x + -25000) = -1375000000 Can't calculate square root of the right side. The solution to this equation could not be determined.
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