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Simplifying 6x2 + 7x = -12 Reorder the terms: 7x + 6x2 = -12 Solving 7x + 6x2 = -12 Solving for variable 'x'. Reorder the terms: 12 + 7x + 6x2 = -12 + 12 Combine like terms: -12 + 12 = 0 12 + 7x + 6x2 = 0 Begin completing the square. Divide all terms by 6 the coefficient of the squared term: Divide each side by '6'. 2 + 1.166666667x + x2 = 0 Move the constant term to the right: Add '-2' to each side of the equation. 2 + 1.166666667x + -2 + x2 = 0 + -2 Reorder the terms: 2 + -2 + 1.166666667x + x2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 1.166666667x + x2 = 0 + -2 1.166666667x + x2 = 0 + -2 Combine like terms: 0 + -2 = -2 1.166666667x + x2 = -2 The x term is 1.166666667x. Take half its coefficient (0.5833333335). Square it (0.3402777780) and add it to both sides. Add '0.3402777780' to each side of the equation. 1.166666667x + 0.3402777780 + x2 = -2 + 0.3402777780 Reorder the terms: 0.3402777780 + 1.166666667x + x2 = -2 + 0.3402777780 Combine like terms: -2 + 0.3402777780 = -1.659722222 0.3402777780 + 1.166666667x + x2 = -1.659722222 Factor a perfect square on the left side: (x + 0.5833333335)(x + 0.5833333335) = -1.659722222 Can't calculate square root of the right side. The solution to this equation could not be determined.
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