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Simplifying 64x2 + -40x + 25 = 0 Reorder the terms: 25 + -40x + 64x2 = 0 Solving 25 + -40x + 64x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 64 the coefficient of the squared term: Divide each side by '64'. 0.390625 + -0.625x + x2 = 0 Move the constant term to the right: Add '-0.390625' to each side of the equation. 0.390625 + -0.625x + -0.390625 + x2 = 0 + -0.390625 Reorder the terms: 0.390625 + -0.390625 + -0.625x + x2 = 0 + -0.390625 Combine like terms: 0.390625 + -0.390625 = 0.000000 0.000000 + -0.625x + x2 = 0 + -0.390625 -0.625x + x2 = 0 + -0.390625 Combine like terms: 0 + -0.390625 = -0.390625 -0.625x + x2 = -0.390625 The x term is -0.625x. Take half its coefficient (-0.3125). Square it (0.09765625) and add it to both sides. Add '0.09765625' to each side of the equation. -0.625x + 0.09765625 + x2 = -0.390625 + 0.09765625 Reorder the terms: 0.09765625 + -0.625x + x2 = -0.390625 + 0.09765625 Combine like terms: -0.390625 + 0.09765625 = -0.29296875 0.09765625 + -0.625x + x2 = -0.29296875 Factor a perfect square on the left side: (x + -0.3125)(x + -0.3125) = -0.29296875 Can't calculate square root of the right side. The solution to this equation could not be determined.
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