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Simplifying 5x2 + -32x + 43 = 0 Reorder the terms: 43 + -32x + 5x2 = 0 Solving 43 + -32x + 5x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. 8.6 + -6.4x + x2 = 0 Move the constant term to the right: Add '-8.6' to each side of the equation. 8.6 + -6.4x + -8.6 + x2 = 0 + -8.6 Reorder the terms: 8.6 + -8.6 + -6.4x + x2 = 0 + -8.6 Combine like terms: 8.6 + -8.6 = 0.0 0.0 + -6.4x + x2 = 0 + -8.6 -6.4x + x2 = 0 + -8.6 Combine like terms: 0 + -8.6 = -8.6 -6.4x + x2 = -8.6 The x term is -6.4x. Take half its coefficient (-3.2). Square it (10.24) and add it to both sides. Add '10.24' to each side of the equation. -6.4x + 10.24 + x2 = -8.6 + 10.24 Reorder the terms: 10.24 + -6.4x + x2 = -8.6 + 10.24 Combine like terms: -8.6 + 10.24 = 1.64 10.24 + -6.4x + x2 = 1.64 Factor a perfect square on the left side: (x + -3.2)(x + -3.2) = 1.64 Calculate the square root of the right side: 1.280624847 Break this problem into two subproblems by setting (x + -3.2) equal to 1.280624847 and -1.280624847.Subproblem 1
x + -3.2 = 1.280624847 Simplifying x + -3.2 = 1.280624847 Reorder the terms: -3.2 + x = 1.280624847 Solving -3.2 + x = 1.280624847 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.2' to each side of the equation. -3.2 + 3.2 + x = 1.280624847 + 3.2 Combine like terms: -3.2 + 3.2 = 0.0 0.0 + x = 1.280624847 + 3.2 x = 1.280624847 + 3.2 Combine like terms: 1.280624847 + 3.2 = 4.480624847 x = 4.480624847 Simplifying x = 4.480624847Subproblem 2
x + -3.2 = -1.280624847 Simplifying x + -3.2 = -1.280624847 Reorder the terms: -3.2 + x = -1.280624847 Solving -3.2 + x = -1.280624847 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.2' to each side of the equation. -3.2 + 3.2 + x = -1.280624847 + 3.2 Combine like terms: -3.2 + 3.2 = 0.0 0.0 + x = -1.280624847 + 3.2 x = -1.280624847 + 3.2 Combine like terms: -1.280624847 + 3.2 = 1.919375153 x = 1.919375153 Simplifying x = 1.919375153Solution
The solution to the problem is based on the solutions from the subproblems. x = {4.480624847, 1.919375153}
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