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Simplifying x2 + -7x + 112 = 0 Reorder the terms: 112 + -7x + x2 = 0 Solving 112 + -7x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-112' to each side of the equation. 112 + -7x + -112 + x2 = 0 + -112 Reorder the terms: 112 + -112 + -7x + x2 = 0 + -112 Combine like terms: 112 + -112 = 0 0 + -7x + x2 = 0 + -112 -7x + x2 = 0 + -112 Combine like terms: 0 + -112 = -112 -7x + x2 = -112 The x term is -7x. Take half its coefficient (-3.5). Square it (12.25) and add it to both sides. Add '12.25' to each side of the equation. -7x + 12.25 + x2 = -112 + 12.25 Reorder the terms: 12.25 + -7x + x2 = -112 + 12.25 Combine like terms: -112 + 12.25 = -99.75 12.25 + -7x + x2 = -99.75 Factor a perfect square on the left side: (x + -3.5)(x + -3.5) = -99.75 Can't calculate square root of the right side. The solution to this equation could not be determined.
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