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Simplifying 4x2 + -20x = 5x2 + -6x + -5 Reorder the terms: -20x + 4x2 = 5x2 + -6x + -5 Reorder the terms: -20x + 4x2 = -5 + -6x + 5x2 Solving -20x + 4x2 = -5 + -6x + 5x2 Solving for variable 'x'. Reorder the terms: 5 + -20x + 6x + 4x2 + -5x2 = -5 + -6x + 5x2 + 5 + 6x + -5x2 Combine like terms: -20x + 6x = -14x 5 + -14x + 4x2 + -5x2 = -5 + -6x + 5x2 + 5 + 6x + -5x2 Combine like terms: 4x2 + -5x2 = -1x2 5 + -14x + -1x2 = -5 + -6x + 5x2 + 5 + 6x + -5x2 Reorder the terms: 5 + -14x + -1x2 = -5 + 5 + -6x + 6x + 5x2 + -5x2 Combine like terms: -5 + 5 = 0 5 + -14x + -1x2 = 0 + -6x + 6x + 5x2 + -5x2 5 + -14x + -1x2 = -6x + 6x + 5x2 + -5x2 Combine like terms: -6x + 6x = 0 5 + -14x + -1x2 = 0 + 5x2 + -5x2 5 + -14x + -1x2 = 5x2 + -5x2 Combine like terms: 5x2 + -5x2 = 0 5 + -14x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -5 + 14x + x2 = 0 Move the constant term to the right: Add '5' to each side of the equation. -5 + 14x + 5 + x2 = 0 + 5 Reorder the terms: -5 + 5 + 14x + x2 = 0 + 5 Combine like terms: -5 + 5 = 0 0 + 14x + x2 = 0 + 5 14x + x2 = 0 + 5 Combine like terms: 0 + 5 = 5 14x + x2 = 5 The x term is 14x. Take half its coefficient (7). Square it (49) and add it to both sides. Add '49' to each side of the equation. 14x + 49 + x2 = 5 + 49 Reorder the terms: 49 + 14x + x2 = 5 + 49 Combine like terms: 5 + 49 = 54 49 + 14x + x2 = 54 Factor a perfect square on the left side: (x + 7)(x + 7) = 54 Calculate the square root of the right side: 7.348469228 Break this problem into two subproblems by setting (x + 7) equal to 7.348469228 and -7.348469228.Subproblem 1
x + 7 = 7.348469228 Simplifying x + 7 = 7.348469228 Reorder the terms: 7 + x = 7.348469228 Solving 7 + x = 7.348469228 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 + x = 7.348469228 + -7 Combine like terms: 7 + -7 = 0 0 + x = 7.348469228 + -7 x = 7.348469228 + -7 Combine like terms: 7.348469228 + -7 = 0.348469228 x = 0.348469228 Simplifying x = 0.348469228Subproblem 2
x + 7 = -7.348469228 Simplifying x + 7 = -7.348469228 Reorder the terms: 7 + x = -7.348469228 Solving 7 + x = -7.348469228 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 + x = -7.348469228 + -7 Combine like terms: 7 + -7 = 0 0 + x = -7.348469228 + -7 x = -7.348469228 + -7 Combine like terms: -7.348469228 + -7 = -14.348469228 x = -14.348469228 Simplifying x = -14.348469228Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.348469228, -14.348469228}
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