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Simplifying 11a2 + -1a + 9 = 0 Reorder the terms: 9 + -1a + 11a2 = 0 Solving 9 + -1a + 11a2 = 0 Solving for variable 'a'. Begin completing the square. Divide all terms by 11 the coefficient of the squared term: Divide each side by '11'. 0.8181818182 + -0.09090909091a + a2 = 0 Move the constant term to the right: Add '-0.8181818182' to each side of the equation. 0.8181818182 + -0.09090909091a + -0.8181818182 + a2 = 0 + -0.8181818182 Reorder the terms: 0.8181818182 + -0.8181818182 + -0.09090909091a + a2 = 0 + -0.8181818182 Combine like terms: 0.8181818182 + -0.8181818182 = 0.0000000000 0.0000000000 + -0.09090909091a + a2 = 0 + -0.8181818182 -0.09090909091a + a2 = 0 + -0.8181818182 Combine like terms: 0 + -0.8181818182 = -0.8181818182 -0.09090909091a + a2 = -0.8181818182 The a term is -0.09090909091a. Take half its coefficient (-0.04545454546). Square it (0.002066115703) and add it to both sides. Add '0.002066115703' to each side of the equation. -0.09090909091a + 0.002066115703 + a2 = -0.8181818182 + 0.002066115703 Reorder the terms: 0.002066115703 + -0.09090909091a + a2 = -0.8181818182 + 0.002066115703 Combine like terms: -0.8181818182 + 0.002066115703 = -0.816115702497 0.002066115703 + -0.09090909091a + a2 = -0.816115702497 Factor a perfect square on the left side: (a + -0.04545454546)(a + -0.04545454546) = -0.816115702497 Can't calculate square root of the right side. The solution to this equation could not be determined.
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