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Simplifying 2x + 2 * 15 = 2x * 2x + 8 Multiply 2 * 15 2x + 30 = 2x * 2x + 8 Reorder the terms: 30 + 2x = 2x * 2x + 8 Reorder the terms for easier multiplication: 30 + 2x = 2 * 2x * x + 8 Multiply 2 * 2 30 + 2x = 4x * x + 8 Multiply x * x 30 + 2x = 4x2 + 8 Reorder the terms: 30 + 2x = 8 + 4x2 Solving 30 + 2x = 8 + 4x2 Solving for variable 'x'. Reorder the terms: 30 + -8 + 2x + -4x2 = 8 + 4x2 + -8 + -4x2 Combine like terms: 30 + -8 = 22 22 + 2x + -4x2 = 8 + 4x2 + -8 + -4x2 Reorder the terms: 22 + 2x + -4x2 = 8 + -8 + 4x2 + -4x2 Combine like terms: 8 + -8 = 0 22 + 2x + -4x2 = 0 + 4x2 + -4x2 22 + 2x + -4x2 = 4x2 + -4x2 Combine like terms: 4x2 + -4x2 = 0 22 + 2x + -4x2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(11 + x + -2x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(11 + x + -2x2)' equal to zero and attempt to solve: Simplifying 11 + x + -2x2 = 0 Solving 11 + x + -2x2 = 0 Begin completing the square. Divide all terms by -2 the coefficient of the squared term: Divide each side by '-2'. -5.5 + -0.5x + x2 = 0 Move the constant term to the right: Add '5.5' to each side of the equation. -5.5 + -0.5x + 5.5 + x2 = 0 + 5.5 Reorder the terms: -5.5 + 5.5 + -0.5x + x2 = 0 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + -0.5x + x2 = 0 + 5.5 -0.5x + x2 = 0 + 5.5 Combine like terms: 0 + 5.5 = 5.5 -0.5x + x2 = 5.5 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. -0.5x + 0.25 + x2 = 5.5 + 0.25 Reorder the terms: 0.25 + -0.5x + x2 = 5.5 + 0.25 Combine like terms: 5.5 + 0.25 = 5.75 0.25 + -0.5x + x2 = 5.75 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = 5.75 Calculate the square root of the right side: 2.397915762 Break this problem into two subproblems by setting (x + 0.5) equal to 2.397915762 and -2.397915762.Subproblem 1
x + 0.5 = 2.397915762 Simplifying x + 0.5 = 2.397915762 Reorder the terms: 0.5 + x = 2.397915762 Solving 0.5 + x = 2.397915762 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 = 2.397915762 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 2.397915762 + -0.5 x = 2.397915762 + -0.5 Combine like terms: 2.397915762 + -0.5 = 1.897915762 x = 1.897915762 Simplifying x = 1.897915762Subproblem 2
x + 0.5 = -2.397915762 Simplifying x + 0.5 = -2.397915762 Reorder the terms: 0.5 + x = -2.397915762 Solving 0.5 + x = -2.397915762 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 = -2.397915762 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -2.397915762 + -0.5 x = -2.397915762 + -0.5 Combine like terms: -2.397915762 + -0.5 = -2.897915762 x = -2.897915762 Simplifying x = -2.897915762Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.897915762, -2.897915762}Solution
x = {1.897915762, -2.897915762}
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