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Simplifying (x + 4)(x + -2) = -6 Reorder the terms: (4 + x)(x + -2) = -6 Reorder the terms: (4 + x)(-2 + x) = -6 Multiply (4 + x) * (-2 + x) (4(-2 + x) + x(-2 + x)) = -6 ((-2 * 4 + x * 4) + x(-2 + x)) = -6 ((-8 + 4x) + x(-2 + x)) = -6 (-8 + 4x + (-2 * x + x * x)) = -6 (-8 + 4x + (-2x + x2)) = -6 Combine like terms: 4x + -2x = 2x (-8 + 2x + x2) = -6 Solving -8 + 2x + x2 = -6 Solving for variable 'x'. Reorder the terms: -8 + 6 + 2x + x2 = -6 + 6 Combine like terms: -8 + 6 = -2 -2 + 2x + x2 = -6 + 6 Combine like terms: -6 + 6 = 0 -2 + 2x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '2' to each side of the equation. -2 + 2x + 2 + x2 = 0 + 2 Reorder the terms: -2 + 2 + 2x + x2 = 0 + 2 Combine like terms: -2 + 2 = 0 0 + 2x + x2 = 0 + 2 2x + x2 = 0 + 2 Combine like terms: 0 + 2 = 2 2x + x2 = 2 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 = 2 + 1 Reorder the terms: 1 + 2x + x2 = 2 + 1 Combine like terms: 2 + 1 = 3 1 + 2x + x2 = 3 Factor a perfect square on the left side: (x + 1)(x + 1) = 3 Calculate the square root of the right side: 1.732050808 Break this problem into two subproblems by setting (x + 1) equal to 1.732050808 and -1.732050808.Subproblem 1
x + 1 = 1.732050808 Simplifying x + 1 = 1.732050808 Reorder the terms: 1 + x = 1.732050808 Solving 1 + x = 1.732050808 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 = 1.732050808 + -1 Combine like terms: 1 + -1 = 0 0 + x = 1.732050808 + -1 x = 1.732050808 + -1 Combine like terms: 1.732050808 + -1 = 0.732050808 x = 0.732050808 Simplifying x = 0.732050808Subproblem 2
x + 1 = -1.732050808 Simplifying x + 1 = -1.732050808 Reorder the terms: 1 + x = -1.732050808 Solving 1 + x = -1.732050808 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 = -1.732050808 + -1 Combine like terms: 1 + -1 = 0 0 + x = -1.732050808 + -1 x = -1.732050808 + -1 Combine like terms: -1.732050808 + -1 = -2.732050808 x = -2.732050808 Simplifying x = -2.732050808Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.732050808, -2.732050808}
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