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Simplifying 9f2 + -5f + 2 = 0 Reorder the terms: 2 + -5f + 9f2 = 0 Solving 2 + -5f + 9f2 = 0 Solving for variable 'f'. Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. 0.2222222222 + -0.5555555556f + f2 = 0 Move the constant term to the right: Add '-0.2222222222' to each side of the equation. 0.2222222222 + -0.5555555556f + -0.2222222222 + f2 = 0 + -0.2222222222 Reorder the terms: 0.2222222222 + -0.2222222222 + -0.5555555556f + f2 = 0 + -0.2222222222 Combine like terms: 0.2222222222 + -0.2222222222 = 0.0000000000 0.0000000000 + -0.5555555556f + f2 = 0 + -0.2222222222 -0.5555555556f + f2 = 0 + -0.2222222222 Combine like terms: 0 + -0.2222222222 = -0.2222222222 -0.5555555556f + f2 = -0.2222222222 The f term is -0.5555555556f. Take half its coefficient (-0.2777777778). Square it (0.07716049384) and add it to both sides. Add '0.07716049384' to each side of the equation. -0.5555555556f + 0.07716049384 + f2 = -0.2222222222 + 0.07716049384 Reorder the terms: 0.07716049384 + -0.5555555556f + f2 = -0.2222222222 + 0.07716049384 Combine like terms: -0.2222222222 + 0.07716049384 = -0.14506172836 0.07716049384 + -0.5555555556f + f2 = -0.14506172836 Factor a perfect square on the left side: (f + -0.2777777778)(f + -0.2777777778) = -0.14506172836 Can't calculate square root of the right side. The solution to this equation could not be determined.
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