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Simplifying 4x2 + -11x + 16 = 0 Reorder the terms: 16 + -11x + 4x2 = 0 Solving 16 + -11x + 4x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. 4 + -2.75x + x2 = 0 Move the constant term to the right: Add '-4' to each side of the equation. 4 + -2.75x + -4 + x2 = 0 + -4 Reorder the terms: 4 + -4 + -2.75x + x2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -2.75x + x2 = 0 + -4 -2.75x + x2 = 0 + -4 Combine like terms: 0 + -4 = -4 -2.75x + x2 = -4 The x term is -2.75x. Take half its coefficient (-1.375). Square it (1.890625) and add it to both sides. Add '1.890625' to each side of the equation. -2.75x + 1.890625 + x2 = -4 + 1.890625 Reorder the terms: 1.890625 + -2.75x + x2 = -4 + 1.890625 Combine like terms: -4 + 1.890625 = -2.109375 1.890625 + -2.75x + x2 = -2.109375 Factor a perfect square on the left side: (x + -1.375)(x + -1.375) = -2.109375 Can't calculate square root of the right side. The solution to this equation could not be determined.
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