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Simplifying x2 + -14x = -57 Reorder the terms: -14x + x2 = -57 Solving -14x + x2 = -57 Solving for variable 'x'. Reorder the terms: 57 + -14x + x2 = -57 + 57 Combine like terms: -57 + 57 = 0 57 + -14x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-57' to each side of the equation. 57 + -14x + -57 + x2 = 0 + -57 Reorder the terms: 57 + -57 + -14x + x2 = 0 + -57 Combine like terms: 57 + -57 = 0 0 + -14x + x2 = 0 + -57 -14x + x2 = 0 + -57 Combine like terms: 0 + -57 = -57 -14x + x2 = -57 The x term is -14x. Take half its coefficient (-7). Square it (49) and add it to both sides. Add '49' to each side of the equation. -14x + 49 + x2 = -57 + 49 Reorder the terms: 49 + -14x + x2 = -57 + 49 Combine like terms: -57 + 49 = -8 49 + -14x + x2 = -8 Factor a perfect square on the left side: (x + -7)(x + -7) = -8 Can't calculate square root of the right side. The solution to this equation could not be determined.
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