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Simplifying 81x2 + 35x + 16 = 0 Reorder the terms: 16 + 35x + 81x2 = 0 Solving 16 + 35x + 81x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 81 the coefficient of the squared term: Divide each side by '81'. 0.1975308642 + 0.4320987654x + x2 = 0 Move the constant term to the right: Add '-0.1975308642' to each side of the equation. 0.1975308642 + 0.4320987654x + -0.1975308642 + x2 = 0 + -0.1975308642 Reorder the terms: 0.1975308642 + -0.1975308642 + 0.4320987654x + x2 = 0 + -0.1975308642 Combine like terms: 0.1975308642 + -0.1975308642 = 0.0000000000 0.0000000000 + 0.4320987654x + x2 = 0 + -0.1975308642 0.4320987654x + x2 = 0 + -0.1975308642 Combine like terms: 0 + -0.1975308642 = -0.1975308642 0.4320987654x + x2 = -0.1975308642 The x term is 0.4320987654x. Take half its coefficient (0.2160493827). Square it (0.04667733577) and add it to both sides. Add '0.04667733577' to each side of the equation. 0.4320987654x + 0.04667733577 + x2 = -0.1975308642 + 0.04667733577 Reorder the terms: 0.04667733577 + 0.4320987654x + x2 = -0.1975308642 + 0.04667733577 Combine like terms: -0.1975308642 + 0.04667733577 = -0.15085352843 0.04667733577 + 0.4320987654x + x2 = -0.15085352843 Factor a perfect square on the left side: (x + 0.2160493827)(x + 0.2160493827) = -0.15085352843 Can't calculate square root of the right side. The solution to this equation could not be determined.
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