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Simplifying x2 + -14x + 800 = 0 Reorder the terms: 800 + -14x + x2 = 0 Solving 800 + -14x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-800' to each side of the equation. 800 + -14x + -800 + x2 = 0 + -800 Reorder the terms: 800 + -800 + -14x + x2 = 0 + -800 Combine like terms: 800 + -800 = 0 0 + -14x + x2 = 0 + -800 -14x + x2 = 0 + -800 Combine like terms: 0 + -800 = -800 -14x + x2 = -800 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 = -800 + 49 Reorder the terms: 49 + -14x + x2 = -800 + 49 Combine like terms: -800 + 49 = -751 49 + -14x + x2 = -751 Factor a perfect square on the left side: (x + -7)(x + -7) = -751 Can't calculate square root of the right side. The solution to this equation could not be determined.
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