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Simplifying a2 + -5a + 1 = 0 Reorder the terms: 1 + -5a + a2 = 0 Solving 1 + -5a + a2 = 0 Solving for variable 'a'. Begin completing the square. Move the constant term to the right: Add '-1' to each side of the equation. 1 + -5a + -1 + a2 = 0 + -1 Reorder the terms: 1 + -1 + -5a + a2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -5a + a2 = 0 + -1 -5a + a2 = 0 + -1 Combine like terms: 0 + -1 = -1 -5a + a2 = -1 The a term is -5a. Take half its coefficient (-2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. -5a + 6.25 + a2 = -1 + 6.25 Reorder the terms: 6.25 + -5a + a2 = -1 + 6.25 Combine like terms: -1 + 6.25 = 5.25 6.25 + -5a + a2 = 5.25 Factor a perfect square on the left side: (a + -2.5)(a + -2.5) = 5.25 Calculate the square root of the right side: 2.291287847 Break this problem into two subproblems by setting (a + -2.5) equal to 2.291287847 and -2.291287847.Subproblem 1
a + -2.5 = 2.291287847 Simplifying a + -2.5 = 2.291287847 Reorder the terms: -2.5 + a = 2.291287847 Solving -2.5 + a = 2.291287847 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + a = 2.291287847 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + a = 2.291287847 + 2.5 a = 2.291287847 + 2.5 Combine like terms: 2.291287847 + 2.5 = 4.791287847 a = 4.791287847 Simplifying a = 4.791287847Subproblem 2
a + -2.5 = -2.291287847 Simplifying a + -2.5 = -2.291287847 Reorder the terms: -2.5 + a = -2.291287847 Solving -2.5 + a = -2.291287847 Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + a = -2.291287847 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + a = -2.291287847 + 2.5 a = -2.291287847 + 2.5 Combine like terms: -2.291287847 + 2.5 = 0.208712153 a = 0.208712153 Simplifying a = 0.208712153Solution
The solution to the problem is based on the solutions from the subproblems. a = {4.791287847, 0.208712153}
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