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Simplifying -7x2 + 16x + -14 = 0 Reorder the terms: -14 + 16x + -7x2 = 0 Solving -14 + 16x + -7x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -7 the coefficient of the squared term: Divide each side by '-7'. 2 + -2.285714286x + x2 = 0 Move the constant term to the right: Add '-2' to each side of the equation. 2 + -2.285714286x + -2 + x2 = 0 + -2 Reorder the terms: 2 + -2 + -2.285714286x + x2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -2.285714286x + x2 = 0 + -2 -2.285714286x + x2 = 0 + -2 Combine like terms: 0 + -2 = -2 -2.285714286x + x2 = -2 The x term is -2.285714286x. Take half its coefficient (-1.142857143). Square it (1.306122449) and add it to both sides. Add '1.306122449' to each side of the equation. -2.285714286x + 1.306122449 + x2 = -2 + 1.306122449 Reorder the terms: 1.306122449 + -2.285714286x + x2 = -2 + 1.306122449 Combine like terms: -2 + 1.306122449 = -0.693877551 1.306122449 + -2.285714286x + x2 = -0.693877551 Factor a perfect square on the left side: (x + -1.142857143)(x + -1.142857143) = -0.693877551 Can't calculate square root of the right side. The solution to this equation could not be determined.
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