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Simplifying 4a2 + -3a + 5 = 0 Reorder the terms: 5 + -3a + 4a2 = 0 Solving 5 + -3a + 4a2 = 0 Solving for variable 'a'. Begin completing the square. Divide all terms by 4 the coefficient of the squared term: Divide each side by '4'. 1.25 + -0.75a + a2 = 0 Move the constant term to the right: Add '-1.25' to each side of the equation. 1.25 + -0.75a + -1.25 + a2 = 0 + -1.25 Reorder the terms: 1.25 + -1.25 + -0.75a + a2 = 0 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + -0.75a + a2 = 0 + -1.25 -0.75a + a2 = 0 + -1.25 Combine like terms: 0 + -1.25 = -1.25 -0.75a + a2 = -1.25 The a term is -0.75a. Take half its coefficient (-0.375). Square it (0.140625) and add it to both sides. Add '0.140625' to each side of the equation. -0.75a + 0.140625 + a2 = -1.25 + 0.140625 Reorder the terms: 0.140625 + -0.75a + a2 = -1.25 + 0.140625 Combine like terms: -1.25 + 0.140625 = -1.109375 0.140625 + -0.75a + a2 = -1.109375 Factor a perfect square on the left side: (a + -0.375)(a + -0.375) = -1.109375 Can't calculate square root of the right side. The solution to this equation could not be determined.
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