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Simplifying 2x(x + 1) + 3 = 5(2x + 1) + 2 Reorder the terms: 2x(1 + x) + 3 = 5(2x + 1) + 2 (1 * 2x + x * 2x) + 3 = 5(2x + 1) + 2 (2x + 2x2) + 3 = 5(2x + 1) + 2 Reorder the terms: 3 + 2x + 2x2 = 5(2x + 1) + 2 Reorder the terms: 3 + 2x + 2x2 = 5(1 + 2x) + 2 3 + 2x + 2x2 = (1 * 5 + 2x * 5) + 2 3 + 2x + 2x2 = (5 + 10x) + 2 Reorder the terms: 3 + 2x + 2x2 = 5 + 2 + 10x Combine like terms: 5 + 2 = 7 3 + 2x + 2x2 = 7 + 10x Solving 3 + 2x + 2x2 = 7 + 10x Solving for variable 'x'. Reorder the terms: 3 + -7 + 2x + -10x + 2x2 = 7 + 10x + -7 + -10x Combine like terms: 3 + -7 = -4 -4 + 2x + -10x + 2x2 = 7 + 10x + -7 + -10x Combine like terms: 2x + -10x = -8x -4 + -8x + 2x2 = 7 + 10x + -7 + -10x Reorder the terms: -4 + -8x + 2x2 = 7 + -7 + 10x + -10x Combine like terms: 7 + -7 = 0 -4 + -8x + 2x2 = 0 + 10x + -10x -4 + -8x + 2x2 = 10x + -10x Combine like terms: 10x + -10x = 0 -4 + -8x + 2x2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-2 + -4x + x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-2 + -4x + x2)' equal to zero and attempt to solve: Simplifying -2 + -4x + x2 = 0 Solving -2 + -4x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '2' to each side of the equation. -2 + -4x + 2 + x2 = 0 + 2 Reorder the terms: -2 + 2 + -4x + x2 = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -4x + x2 = 0 + 2 -4x + x2 = 0 + 2 Combine like terms: 0 + 2 = 2 -4x + x2 = 2 The x term is -4x. Take half its coefficient (-2). Square it (4) and add it to both sides. Add '4' to each side of the equation. -4x + 4 + x2 = 2 + 4 Reorder the terms: 4 + -4x + x2 = 2 + 4 Combine like terms: 2 + 4 = 6 4 + -4x + x2 = 6 Factor a perfect square on the left side: (x + -2)(x + -2) = 6 Calculate the square root of the right side: 2.449489743 Break this problem into two subproblems by setting (x + -2) equal to 2.449489743 and -2.449489743.Subproblem 1
x + -2 = 2.449489743 Simplifying x + -2 = 2.449489743 Reorder the terms: -2 + x = 2.449489743 Solving -2 + x = 2.449489743 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = 2.449489743 + 2 Combine like terms: -2 + 2 = 0 0 + x = 2.449489743 + 2 x = 2.449489743 + 2 Combine like terms: 2.449489743 + 2 = 4.449489743 x = 4.449489743 Simplifying x = 4.449489743Subproblem 2
x + -2 = -2.449489743 Simplifying x + -2 = -2.449489743 Reorder the terms: -2 + x = -2.449489743 Solving -2 + x = -2.449489743 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = -2.449489743 + 2 Combine like terms: -2 + 2 = 0 0 + x = -2.449489743 + 2 x = -2.449489743 + 2 Combine like terms: -2.449489743 + 2 = -0.449489743 x = -0.449489743 Simplifying x = -0.449489743Solution
The solution to the problem is based on the solutions from the subproblems. x = {4.449489743, -0.449489743}Solution
x = {4.449489743, -0.449489743}
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