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Simplifying 5x + -1x2 + 98 = 345 Reorder the terms: 98 + 5x + -1x2 = 345 Solving 98 + 5x + -1x2 = 345 Solving for variable 'x'. Reorder the terms: 98 + -345 + 5x + -1x2 = 345 + -345 Combine like terms: 98 + -345 = -247 -247 + 5x + -1x2 = 345 + -345 Combine like terms: 345 + -345 = 0 -247 + 5x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 247 + -5x + x2 = 0 Move the constant term to the right: Add '-247' to each side of the equation. 247 + -5x + -247 + x2 = 0 + -247 Reorder the terms: 247 + -247 + -5x + x2 = 0 + -247 Combine like terms: 247 + -247 = 0 0 + -5x + x2 = 0 + -247 -5x + x2 = 0 + -247 Combine like terms: 0 + -247 = -247 -5x + x2 = -247 The x term is -5x. Take half its coefficient (-2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. -5x + 6.25 + x2 = -247 + 6.25 Reorder the terms: 6.25 + -5x + x2 = -247 + 6.25 Combine like terms: -247 + 6.25 = -240.75 6.25 + -5x + x2 = -240.75 Factor a perfect square on the left side: (x + -2.5)(x + -2.5) = -240.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
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