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Simplifying (3x + -1)(3 + -1x) + 4x2 = 19 Reorder the terms: (-1 + 3x)(3 + -1x) + 4x2 = 19 Multiply (-1 + 3x) * (3 + -1x) (-1(3 + -1x) + 3x * (3 + -1x)) + 4x2 = 19 ((3 * -1 + -1x * -1) + 3x * (3 + -1x)) + 4x2 = 19 ((-3 + 1x) + 3x * (3 + -1x)) + 4x2 = 19 (-3 + 1x + (3 * 3x + -1x * 3x)) + 4x2 = 19 (-3 + 1x + (9x + -3x2)) + 4x2 = 19 Combine like terms: 1x + 9x = 10x (-3 + 10x + -3x2) + 4x2 = 19 Combine like terms: -3x2 + 4x2 = 1x2 -3 + 10x + 1x2 = 19 Solving -3 + 10x + 1x2 = 19 Solving for variable 'x'. Reorder the terms: -3 + -19 + 10x + 1x2 = 19 + -19 Combine like terms: -3 + -19 = -22 -22 + 10x + 1x2 = 19 + -19 Combine like terms: 19 + -19 = 0 -22 + 10x + 1x2 = 0 Begin completing the square. Move the constant term to the right: Add '22' to each side of the equation. -22 + 10x + 22 + x2 = 0 + 22 Reorder the terms: -22 + 22 + 10x + x2 = 0 + 22 Combine like terms: -22 + 22 = 0 0 + 10x + x2 = 0 + 22 10x + x2 = 0 + 22 Combine like terms: 0 + 22 = 22 10x + x2 = 22 The x term is 10x. Take half its coefficient (5). Square it (25) and add it to both sides. Add '25' to each side of the equation. 10x + 25 + x2 = 22 + 25 Reorder the terms: 25 + 10x + x2 = 22 + 25 Combine like terms: 22 + 25 = 47 25 + 10x + x2 = 47 Factor a perfect square on the left side: (x + 5)(x + 5) = 47 Calculate the square root of the right side: 6.8556546 Break this problem into two subproblems by setting (x + 5) equal to 6.8556546 and -6.8556546.Subproblem 1
x + 5 = 6.8556546 Simplifying x + 5 = 6.8556546 Reorder the terms: 5 + x = 6.8556546 Solving 5 + x = 6.8556546 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 6.8556546 + -5 Combine like terms: 5 + -5 = 0 0 + x = 6.8556546 + -5 x = 6.8556546 + -5 Combine like terms: 6.8556546 + -5 = 1.8556546 x = 1.8556546 Simplifying x = 1.8556546Subproblem 2
x + 5 = -6.8556546 Simplifying x + 5 = -6.8556546 Reorder the terms: 5 + x = -6.8556546 Solving 5 + x = -6.8556546 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = -6.8556546 + -5 Combine like terms: 5 + -5 = 0 0 + x = -6.8556546 + -5 x = -6.8556546 + -5 Combine like terms: -6.8556546 + -5 = -11.8556546 x = -11.8556546 Simplifying x = -11.8556546Solution
The solution to the problem is based on the solutions from the subproblems. x = {1.8556546, -11.8556546}
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