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Simplifying 3(3x + 3)(3x + 3) + -60 = 0 Reorder the terms: 3(3 + 3x)(3x + 3) + -60 = 0 Reorder the terms: 3(3 + 3x)(3 + 3x) + -60 = 0 Multiply (3 + 3x) * (3 + 3x) 3(3(3 + 3x) + 3x * (3 + 3x)) + -60 = 0 3((3 * 3 + 3x * 3) + 3x * (3 + 3x)) + -60 = 0 3((9 + 9x) + 3x * (3 + 3x)) + -60 = 0 3(9 + 9x + (3 * 3x + 3x * 3x)) + -60 = 0 3(9 + 9x + (9x + 9x2)) + -60 = 0 Combine like terms: 9x + 9x = 18x 3(9 + 18x + 9x2) + -60 = 0 (9 * 3 + 18x * 3 + 9x2 * 3) + -60 = 0 (27 + 54x + 27x2) + -60 = 0 Reorder the terms: 27 + -60 + 54x + 27x2 = 0 Combine like terms: 27 + -60 = -33 -33 + 54x + 27x2 = 0 Solving -33 + 54x + 27x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '3'. 3(-11 + 18x + 9x2) = 0 Ignore the factor 3.Subproblem 1
Set the factor '(-11 + 18x + 9x2)' equal to zero and attempt to solve: Simplifying -11 + 18x + 9x2 = 0 Solving -11 + 18x + 9x2 = 0 Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. -1.222222222 + 2x + x2 = 0 Move the constant term to the right: Add '1.222222222' to each side of the equation. -1.222222222 + 2x + 1.222222222 + x2 = 0 + 1.222222222 Reorder the terms: -1.222222222 + 1.222222222 + 2x + x2 = 0 + 1.222222222 Combine like terms: -1.222222222 + 1.222222222 = 0.000000000 0.000000000 + 2x + x2 = 0 + 1.222222222 2x + x2 = 0 + 1.222222222 Combine like terms: 0 + 1.222222222 = 1.222222222 2x + x2 = 1.222222222 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 = 1.222222222 + 1 Reorder the terms: 1 + 2x + x2 = 1.222222222 + 1 Combine like terms: 1.222222222 + 1 = 2.222222222 1 + 2x + x2 = 2.222222222 Factor a perfect square on the left side: (x + 1)(x + 1) = 2.222222222 Calculate the square root of the right side: 1.490711985 Break this problem into two subproblems by setting (x + 1) equal to 1.490711985 and -1.490711985.Subproblem 1
x + 1 = 1.490711985 Simplifying x + 1 = 1.490711985 Reorder the terms: 1 + x = 1.490711985 Solving 1 + x = 1.490711985 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 = 1.490711985 + -1 Combine like terms: 1 + -1 = 0 0 + x = 1.490711985 + -1 x = 1.490711985 + -1 Combine like terms: 1.490711985 + -1 = 0.490711985 x = 0.490711985 Simplifying x = 0.490711985Subproblem 2
x + 1 = -1.490711985 Simplifying x + 1 = -1.490711985 Reorder the terms: 1 + x = -1.490711985 Solving 1 + x = -1.490711985 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 = -1.490711985 + -1 Combine like terms: 1 + -1 = 0 0 + x = -1.490711985 + -1 x = -1.490711985 + -1 Combine like terms: -1.490711985 + -1 = -2.490711985 x = -2.490711985 Simplifying x = -2.490711985Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.490711985, -2.490711985}Solution
x = {0.490711985, -2.490711985}
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