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Simplifying 6x(x + 7) = 2x + 22 Reorder the terms: 6x(7 + x) = 2x + 22 (7 * 6x + x * 6x) = 2x + 22 (42x + 6x2) = 2x + 22 Reorder the terms: 42x + 6x2 = 22 + 2x Solving 42x + 6x2 = 22 + 2x Solving for variable 'x'. Reorder the terms: -22 + 42x + -2x + 6x2 = 22 + 2x + -22 + -2x Combine like terms: 42x + -2x = 40x -22 + 40x + 6x2 = 22 + 2x + -22 + -2x Reorder the terms: -22 + 40x + 6x2 = 22 + -22 + 2x + -2x Combine like terms: 22 + -22 = 0 -22 + 40x + 6x2 = 0 + 2x + -2x -22 + 40x + 6x2 = 2x + -2x Combine like terms: 2x + -2x = 0 -22 + 40x + 6x2 = 0 Factor out the Greatest Common Factor (GCF), '2'. 2(-11 + 20x + 3x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-11 + 20x + 3x2)' equal to zero and attempt to solve: Simplifying -11 + 20x + 3x2 = 0 Solving -11 + 20x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. -3.666666667 + 6.666666667x + x2 = 0 Move the constant term to the right: Add '3.666666667' to each side of the equation. -3.666666667 + 6.666666667x + 3.666666667 + x2 = 0 + 3.666666667 Reorder the terms: -3.666666667 + 3.666666667 + 6.666666667x + x2 = 0 + 3.666666667 Combine like terms: -3.666666667 + 3.666666667 = 0.000000000 0.000000000 + 6.666666667x + x2 = 0 + 3.666666667 6.666666667x + x2 = 0 + 3.666666667 Combine like terms: 0 + 3.666666667 = 3.666666667 6.666666667x + x2 = 3.666666667 The x term is 6.666666667x. Take half its coefficient (3.333333334). Square it (11.11111112) and add it to both sides. Add '11.11111112' to each side of the equation. 6.666666667x + 11.11111112 + x2 = 3.666666667 + 11.11111112 Reorder the terms: 11.11111112 + 6.666666667x + x2 = 3.666666667 + 11.11111112 Combine like terms: 3.666666667 + 11.11111112 = 14.777777787 11.11111112 + 6.666666667x + x2 = 14.777777787 Factor a perfect square on the left side: (x + 3.333333334)(x + 3.333333334) = 14.777777787 Calculate the square root of the right side: 3.844187533 Break this problem into two subproblems by setting (x + 3.333333334) equal to 3.844187533 and -3.844187533.Subproblem 1
x + 3.333333334 = 3.844187533 Simplifying x + 3.333333334 = 3.844187533 Reorder the terms: 3.333333334 + x = 3.844187533 Solving 3.333333334 + x = 3.844187533 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.333333334' to each side of the equation. 3.333333334 + -3.333333334 + x = 3.844187533 + -3.333333334 Combine like terms: 3.333333334 + -3.333333334 = 0.000000000 0.000000000 + x = 3.844187533 + -3.333333334 x = 3.844187533 + -3.333333334 Combine like terms: 3.844187533 + -3.333333334 = 0.510854199 x = 0.510854199 Simplifying x = 0.510854199Subproblem 2
x + 3.333333334 = -3.844187533 Simplifying x + 3.333333334 = -3.844187533 Reorder the terms: 3.333333334 + x = -3.844187533 Solving 3.333333334 + x = -3.844187533 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3.333333334' to each side of the equation. 3.333333334 + -3.333333334 + x = -3.844187533 + -3.333333334 Combine like terms: 3.333333334 + -3.333333334 = 0.000000000 0.000000000 + x = -3.844187533 + -3.333333334 x = -3.844187533 + -3.333333334 Combine like terms: -3.844187533 + -3.333333334 = -7.177520867 x = -7.177520867 Simplifying x = -7.177520867Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.510854199, -7.177520867}Solution
x = {0.510854199, -7.177520867}
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