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Simplifying 16x2 + -1(4x + -5) = 0 Reorder the terms: 16x2 + -1(-5 + 4x) = 0 16x2 + (-5 * -1 + 4x * -1) = 0 16x2 + (5 + -4x) = 0 Reorder the terms: 5 + -4x + 16x2 = 0 Solving 5 + -4x + 16x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 16 the coefficient of the squared term: Divide each side by '16'. 0.3125 + -0.25x + x2 = 0 Move the constant term to the right: Add '-0.3125' to each side of the equation. 0.3125 + -0.25x + -0.3125 + x2 = 0 + -0.3125 Reorder the terms: 0.3125 + -0.3125 + -0.25x + x2 = 0 + -0.3125 Combine like terms: 0.3125 + -0.3125 = 0.0000 0.0000 + -0.25x + x2 = 0 + -0.3125 -0.25x + x2 = 0 + -0.3125 Combine like terms: 0 + -0.3125 = -0.3125 -0.25x + x2 = -0.3125 The x term is -0.25x. Take half its coefficient (-0.125). Square it (0.015625) and add it to both sides. Add '0.015625' to each side of the equation. -0.25x + 0.015625 + x2 = -0.3125 + 0.015625 Reorder the terms: 0.015625 + -0.25x + x2 = -0.3125 + 0.015625 Combine like terms: -0.3125 + 0.015625 = -0.296875 0.015625 + -0.25x + x2 = -0.296875 Factor a perfect square on the left side: (x + -0.125)(x + -0.125) = -0.296875 Can't calculate square root of the right side. The solution to this equation could not be determined.
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