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Simplifying x2 + -4x = 3x + -2 + 28 Reorder the terms: -4x + x2 = 3x + -2 + 28 Reorder the terms: -4x + x2 = -2 + 28 + 3x Combine like terms: -2 + 28 = 26 -4x + x2 = 26 + 3x Solving -4x + x2 = 26 + 3x Solving for variable 'x'. Reorder the terms: -26 + -4x + -3x + x2 = 26 + 3x + -26 + -3x Combine like terms: -4x + -3x = -7x -26 + -7x + x2 = 26 + 3x + -26 + -3x Reorder the terms: -26 + -7x + x2 = 26 + -26 + 3x + -3x Combine like terms: 26 + -26 = 0 -26 + -7x + x2 = 0 + 3x + -3x -26 + -7x + x2 = 3x + -3x Combine like terms: 3x + -3x = 0 -26 + -7x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '26' to each side of the equation. -26 + -7x + 26 + x2 = 0 + 26 Reorder the terms: -26 + 26 + -7x + x2 = 0 + 26 Combine like terms: -26 + 26 = 0 0 + -7x + x2 = 0 + 26 -7x + x2 = 0 + 26 Combine like terms: 0 + 26 = 26 -7x + x2 = 26 The x term is -7x. Take half its coefficient (-3.5). Square it (12.25) and add it to both sides. Add '12.25' to each side of the equation. -7x + 12.25 + x2 = 26 + 12.25 Reorder the terms: 12.25 + -7x + x2 = 26 + 12.25 Combine like terms: 26 + 12.25 = 38.25 12.25 + -7x + x2 = 38.25 Factor a perfect square on the left side: (x + -3.5)(x + -3.5) = 38.25 Calculate the square root of the right side: 6.184658438 Break this problem into two subproblems by setting (x + -3.5) equal to 6.184658438 and -6.184658438.Subproblem 1
x + -3.5 = 6.184658438 Simplifying x + -3.5 = 6.184658438 Reorder the terms: -3.5 + x = 6.184658438 Solving -3.5 + x = 6.184658438 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x = 6.184658438 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = 6.184658438 + 3.5 x = 6.184658438 + 3.5 Combine like terms: 6.184658438 + 3.5 = 9.684658438 x = 9.684658438 Simplifying x = 9.684658438Subproblem 2
x + -3.5 = -6.184658438 Simplifying x + -3.5 = -6.184658438 Reorder the terms: -3.5 + x = -6.184658438 Solving -3.5 + x = -6.184658438 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.5' to each side of the equation. -3.5 + 3.5 + x = -6.184658438 + 3.5 Combine like terms: -3.5 + 3.5 = 0.0 0.0 + x = -6.184658438 + 3.5 x = -6.184658438 + 3.5 Combine like terms: -6.184658438 + 3.5 = -2.684658438 x = -2.684658438 Simplifying x = -2.684658438Solution
The solution to the problem is based on the solutions from the subproblems. x = {9.684658438, -2.684658438}
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