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Simplifying 2.5x2 + -6x + 22 = 0 Reorder the terms: 22 + -6x + 2.5x2 = 0 Solving 22 + -6x + 2.5x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2.5 the coefficient of the squared term: Divide each side by '2.5'. 8.8 + -2.4x + x2 = 0 Move the constant term to the right: Add '-8.8' to each side of the equation. 8.8 + -2.4x + -8.8 + x2 = 0 + -8.8 Reorder the terms: 8.8 + -8.8 + -2.4x + x2 = 0 + -8.8 Combine like terms: 8.8 + -8.8 = 0.0 0.0 + -2.4x + x2 = 0 + -8.8 -2.4x + x2 = 0 + -8.8 Combine like terms: 0 + -8.8 = -8.8 -2.4x + x2 = -8.8 The x term is -2.4x. Take half its coefficient (-1.2). Square it (1.44) and add it to both sides. Add '1.44' to each side of the equation. -2.4x + 1.44 + x2 = -8.8 + 1.44 Reorder the terms: 1.44 + -2.4x + x2 = -8.8 + 1.44 Combine like terms: -8.8 + 1.44 = -7.36 1.44 + -2.4x + x2 = -7.36 Factor a perfect square on the left side: (x + -1.2)(x + -1.2) = -7.36 Can't calculate square root of the right side. The solution to this equation could not be determined.
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