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Simplifying x2 + -14x + 784 = 0 Reorder the terms: 784 + -14x + x2 = 0 Solving 784 + -14x + x2 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-784' to each side of the equation. 784 + -14x + -784 + x2 = 0 + -784 Reorder the terms: 784 + -784 + -14x + x2 = 0 + -784 Combine like terms: 784 + -784 = 0 0 + -14x + x2 = 0 + -784 -14x + x2 = 0 + -784 Combine like terms: 0 + -784 = -784 -14x + x2 = -784 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 = -784 + 49 Reorder the terms: 49 + -14x + x2 = -784 + 49 Combine like terms: -784 + 49 = -735 49 + -14x + x2 = -735 Factor a perfect square on the left side: (x + -7)(x + -7) = -735 Can't calculate square root of the right side. The solution to this equation could not be determined.
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