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Simplifying 3x = x2 + 25 Reorder the terms: 3x = 25 + x2 Solving 3x = 25 + x2 Solving for variable 'x'. Reorder the terms: -25 + 3x + -1x2 = 25 + x2 + -25 + -1x2 Reorder the terms: -25 + 3x + -1x2 = 25 + -25 + x2 + -1x2 Combine like terms: 25 + -25 = 0 -25 + 3x + -1x2 = 0 + x2 + -1x2 -25 + 3x + -1x2 = x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -25 + 3x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 25 + -3x + x2 = 0 Move the constant term to the right: Add '-25' to each side of the equation. 25 + -3x + -25 + x2 = 0 + -25 Reorder the terms: 25 + -25 + -3x + x2 = 0 + -25 Combine like terms: 25 + -25 = 0 0 + -3x + x2 = 0 + -25 -3x + x2 = 0 + -25 Combine like terms: 0 + -25 = -25 -3x + x2 = -25 The x term is -3x. Take half its coefficient (-1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. -3x + 2.25 + x2 = -25 + 2.25 Reorder the terms: 2.25 + -3x + x2 = -25 + 2.25 Combine like terms: -25 + 2.25 = -22.75 2.25 + -3x + x2 = -22.75 Factor a perfect square on the left side: (x + -1.5)(x + -1.5) = -22.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
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