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Simplifying -0.01x2 + 1.4x + -58 = 0 Reorder the terms: -58 + 1.4x + -0.01x2 = 0 Solving -58 + 1.4x + -0.01x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -0.01 the coefficient of the squared term: Divide each side by '-0.01'. 5800 + -140x + x2 = 0 Move the constant term to the right: Add '-5800' to each side of the equation. 5800 + -140x + -5800 + x2 = 0 + -5800 Reorder the terms: 5800 + -5800 + -140x + x2 = 0 + -5800 Combine like terms: 5800 + -5800 = 0 0 + -140x + x2 = 0 + -5800 -140x + x2 = 0 + -5800 Combine like terms: 0 + -5800 = -5800 -140x + x2 = -5800 The x term is -140x. Take half its coefficient (-70). Square it (4900) and add it to both sides. Add '4900' to each side of the equation. -140x + 4900 + x2 = -5800 + 4900 Reorder the terms: 4900 + -140x + x2 = -5800 + 4900 Combine like terms: -5800 + 4900 = -900 4900 + -140x + x2 = -900 Factor a perfect square on the left side: (x + -70)(x + -70) = -900 Can't calculate square root of the right side. The solution to this equation could not be determined.
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