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Simplifying x2 + -14x + 216 = 0 Reorder the terms: 216 + -14x + x2 = 0 Solving 216 + -14x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-216' to each side of the equation. 216 + -14x + -216 + x2 = 0 + -216 Reorder the terms: 216 + -216 + -14x + x2 = 0 + -216 Combine like terms: 216 + -216 = 0 0 + -14x + x2 = 0 + -216 -14x + x2 = 0 + -216 Combine like terms: 0 + -216 = -216 -14x + x2 = -216 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 = -216 + 49 Reorder the terms: 49 + -14x + x2 = -216 + 49 Combine like terms: -216 + 49 = -167 49 + -14x + x2 = -167 Factor a perfect square on the left side: (x + -7)(x + -7) = -167 Can't calculate square root of the right side. The solution to this equation could not be determined.
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