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Simplifying x4 + -14x2 + 44 = 0 Reorder the terms: 44 + -14x2 + x4 = 0 Solving 44 + -14x2 + x4 = 0 Solving for variable 'x'. Begin completing the square. Move the constant term to the right: Add '-44' to each side of the equation. 44 + -14x2 + -44 + x4 = 0 + -44 Reorder the terms: 44 + -44 + -14x2 + x4 = 0 + -44 Combine like terms: 44 + -44 = 0 0 + -14x2 + x4 = 0 + -44 -14x2 + x4 = 0 + -44 Combine like terms: 0 + -44 = -44 -14x2 + x4 = -44 The x term is -14x2. Take half its coefficient (-7). Square it (49) and add it to both sides. Add '49' to each side of the equation. -14x2 + 49 + x4 = -44 + 49 Reorder the terms: 49 + -14x2 + x4 = -44 + 49 Combine like terms: -44 + 49 = 5 49 + -14x2 + x4 = 5 Factor a perfect square on the left side: (x2 + -7)(x2 + -7) = 5 Calculate the square root of the right side: 2.236067978 Break this problem into two subproblems by setting (x2 + -7) equal to 2.236067978 and -2.236067978.Subproblem 1
x2 + -7 = 2.236067978 Simplifying x2 + -7 = 2.236067978 Reorder the terms: -7 + x2 = 2.236067978 Solving -7 + x2 = 2.236067978 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + x2 = 2.236067978 + 7 Combine like terms: -7 + 7 = 0 0 + x2 = 2.236067978 + 7 x2 = 2.236067978 + 7 Combine like terms: 2.236067978 + 7 = 9.236067978 x2 = 9.236067978 Simplifying x2 = 9.236067978 Take the square root of each side: x = {-3.039089992, 3.039089992}Subproblem 2
x2 + -7 = -2.236067978 Simplifying x2 + -7 = -2.236067978 Reorder the terms: -7 + x2 = -2.236067978 Solving -7 + x2 = -2.236067978 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + x2 = -2.236067978 + 7 Combine like terms: -7 + 7 = 0 0 + x2 = -2.236067978 + 7 x2 = -2.236067978 + 7 Combine like terms: -2.236067978 + 7 = 4.763932022 x2 = 4.763932022 Simplifying x2 = 4.763932022 Take the square root of each side: x = {-2.182643357, 2.182643357}Solution
The solution to the problem is based on the solutions from the subproblems. x = {-3.039089992, 3.039089992, -2.182643357, 2.182643357}
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