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Simplifying 11a2 + -9a + 5 = 0 Reorder the terms: 5 + -9a + 11a2 = 0 Solving 5 + -9a + 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'. 0.4545454545 + -0.8181818182a + a2 = 0 Move the constant term to the right: Add '-0.4545454545' to each side of the equation. 0.4545454545 + -0.8181818182a + -0.4545454545 + a2 = 0 + -0.4545454545 Reorder the terms: 0.4545454545 + -0.4545454545 + -0.8181818182a + a2 = 0 + -0.4545454545 Combine like terms: 0.4545454545 + -0.4545454545 = 0.0000000000 0.0000000000 + -0.8181818182a + a2 = 0 + -0.4545454545 -0.8181818182a + a2 = 0 + -0.4545454545 Combine like terms: 0 + -0.4545454545 = -0.4545454545 -0.8181818182a + a2 = -0.4545454545 The a term is -0.8181818182a. Take half its coefficient (-0.4090909091). Square it (0.1673553719) and add it to both sides. Add '0.1673553719' to each side of the equation. -0.8181818182a + 0.1673553719 + a2 = -0.4545454545 + 0.1673553719 Reorder the terms: 0.1673553719 + -0.8181818182a + a2 = -0.4545454545 + 0.1673553719 Combine like terms: -0.4545454545 + 0.1673553719 = -0.2871900826 0.1673553719 + -0.8181818182a + a2 = -0.2871900826 Factor a perfect square on the left side: (a + -0.4090909091)(a + -0.4090909091) = -0.2871900826 Can't calculate square root of the right side. The solution to this equation could not be determined.
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