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Simplifying -16x2 + 30x + 6 = 25 Reorder the terms: 6 + 30x + -16x2 = 25 Solving 6 + 30x + -16x2 = 25 Solving for variable 'x'. Reorder the terms: 6 + -25 + 30x + -16x2 = 25 + -25 Combine like terms: 6 + -25 = -19 -19 + 30x + -16x2 = 25 + -25 Combine like terms: 25 + -25 = 0 -19 + 30x + -16x2 = 0 Begin completing the square. Divide all terms by -16 the coefficient of the squared term: Divide each side by '-16'. 1.1875 + -1.875x + x2 = 0 Move the constant term to the right: Add '-1.1875' to each side of the equation. 1.1875 + -1.875x + -1.1875 + x2 = 0 + -1.1875 Reorder the terms: 1.1875 + -1.1875 + -1.875x + x2 = 0 + -1.1875 Combine like terms: 1.1875 + -1.1875 = 0.0000 0.0000 + -1.875x + x2 = 0 + -1.1875 -1.875x + x2 = 0 + -1.1875 Combine like terms: 0 + -1.1875 = -1.1875 -1.875x + x2 = -1.1875 The x term is -1.875x. Take half its coefficient (-0.9375). Square it (0.87890625) and add it to both sides. Add '0.87890625' to each side of the equation. -1.875x + 0.87890625 + x2 = -1.1875 + 0.87890625 Reorder the terms: 0.87890625 + -1.875x + x2 = -1.1875 + 0.87890625 Combine like terms: -1.1875 + 0.87890625 = -0.30859375 0.87890625 + -1.875x + x2 = -0.30859375 Factor a perfect square on the left side: (x + -0.9375)(x + -0.9375) = -0.30859375 Can't calculate square root of the right side. The solution to this equation could not be determined.
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