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Simplifying x2 + x = 4.95 Reorder the terms: x + x2 = 4.95 Solving x + x2 = 4.95 Solving for variable 'x'. Reorder the terms: -4.95 + x + x2 = 4.95 + -4.95 Combine like terms: 4.95 + -4.95 = 0.00 -4.95 + x + x2 = 0.00 Begin completing the square. Move the constant term to the right: Add '4.95' to each side of the equation. -4.95 + x + 4.95 + x2 = 0.00 + 4.95 Reorder the terms: -4.95 + 4.95 + x + x2 = 0.00 + 4.95 Combine like terms: -4.95 + 4.95 = 0.00 0.00 + x + x2 = 0.00 + 4.95 x + x2 = 0.00 + 4.95 Combine like terms: 0.00 + 4.95 = 4.95 x + x2 = 4.95 The x term is x. Take half its coefficient (0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. x + 0.25 + x2 = 4.95 + 0.25 Reorder the terms: 0.25 + x + x2 = 4.95 + 0.25 Combine like terms: 4.95 + 0.25 = 5.2 0.25 + x + x2 = 5.2 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 5.2 Calculate the square root of the right side: 2.28035085 Break this problem into two subproblems by setting (x + 0.5) equal to 2.28035085 and -2.28035085.Subproblem 1
x + 0.5 = 2.28035085 Simplifying x + 0.5 = 2.28035085 Reorder the terms: 0.5 + x = 2.28035085 Solving 0.5 + x = 2.28035085 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 2.28035085 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 2.28035085 + -0.5 x = 2.28035085 + -0.5 Combine like terms: 2.28035085 + -0.5 = 1.78035085 x = 1.78035085 Simplifying x = 1.78035085Subproblem 2
x + 0.5 = -2.28035085 Simplifying x + 0.5 = -2.28035085 Reorder the terms: 0.5 + x = -2.28035085 Solving 0.5 + x = -2.28035085 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -2.28035085 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -2.28035085 + -0.5 x = -2.28035085 + -0.5 Combine like terms: -2.28035085 + -0.5 = -2.78035085 x = -2.78035085 Simplifying x = -2.78035085Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.78035085, -2.78035085}
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