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Simplifying (x + -3) * x + 4(x + -5) = 3x Reorder the terms: (-3 + x) * x + 4(x + -5) = 3x Reorder the terms for easier multiplication: x(-3 + x) + 4(x + -5) = 3x (-3 * x + x * x) + 4(x + -5) = 3x (-3x + x2) + 4(x + -5) = 3x Reorder the terms: -3x + x2 + 4(-5 + x) = 3x -3x + x2 + (-5 * 4 + x * 4) = 3x -3x + x2 + (-20 + 4x) = 3x Reorder the terms: -20 + -3x + 4x + x2 = 3x Combine like terms: -3x + 4x = 1x -20 + 1x + x2 = 3x Solving -20 + 1x + x2 = 3x Solving for variable 'x'. Reorder the terms: -20 + 1x + -3x + x2 = 3x + -3x Combine like terms: 1x + -3x = -2x -20 + -2x + x2 = 3x + -3x Combine like terms: 3x + -3x = 0 -20 + -2x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '20' to each side of the equation. -20 + -2x + 20 + x2 = 0 + 20 Reorder the terms: -20 + 20 + -2x + x2 = 0 + 20 Combine like terms: -20 + 20 = 0 0 + -2x + x2 = 0 + 20 -2x + x2 = 0 + 20 Combine like terms: 0 + 20 = 20 -2x + x2 = 20 The x term is -2x. Take half its coefficient (-1). Square it (1) and add it to both sides. Add '1' to each side of the equation. -2x + 1 + x2 = 20 + 1 Reorder the terms: 1 + -2x + x2 = 20 + 1 Combine like terms: 20 + 1 = 21 1 + -2x + x2 = 21 Factor a perfect square on the left side: (x + -1)(x + -1) = 21 Calculate the square root of the right side: 4.582575695 Break this problem into two subproblems by setting (x + -1) equal to 4.582575695 and -4.582575695.Subproblem 1
x + -1 = 4.582575695 Simplifying x + -1 = 4.582575695 Reorder the terms: -1 + x = 4.582575695 Solving -1 + x = 4.582575695 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 4.582575695 + 1 Combine like terms: -1 + 1 = 0 0 + x = 4.582575695 + 1 x = 4.582575695 + 1 Combine like terms: 4.582575695 + 1 = 5.582575695 x = 5.582575695 Simplifying x = 5.582575695Subproblem 2
x + -1 = -4.582575695 Simplifying x + -1 = -4.582575695 Reorder the terms: -1 + x = -4.582575695 Solving -1 + x = -4.582575695 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -4.582575695 + 1 Combine like terms: -1 + 1 = 0 0 + x = -4.582575695 + 1 x = -4.582575695 + 1 Combine like terms: -4.582575695 + 1 = -3.582575695 x = -3.582575695 Simplifying x = -3.582575695Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.582575695, -3.582575695}
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