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Simplifying 3x2 + -33x + -57 = 0 Reorder the terms: -57 + -33x + 3x2 = 0 Solving -57 + -33x + 3x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '3'. 3(-19 + -11x + x2) = 0 Ignore the factor 3.Subproblem 1
Set the factor '(-19 + -11x + x2)' equal to zero and attempt to solve: Simplifying -19 + -11x + x2 = 0 Solving -19 + -11x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '19' to each side of the equation. -19 + -11x + 19 + x2 = 0 + 19 Reorder the terms: -19 + 19 + -11x + x2 = 0 + 19 Combine like terms: -19 + 19 = 0 0 + -11x + x2 = 0 + 19 -11x + x2 = 0 + 19 Combine like terms: 0 + 19 = 19 -11x + x2 = 19 The x term is -11x. Take half its coefficient (-5.5). Square it (30.25) and add it to both sides. Add '30.25' to each side of the equation. -11x + 30.25 + x2 = 19 + 30.25 Reorder the terms: 30.25 + -11x + x2 = 19 + 30.25 Combine like terms: 19 + 30.25 = 49.25 30.25 + -11x + x2 = 49.25 Factor a perfect square on the left side: (x + -5.5)(x + -5.5) = 49.25 Calculate the square root of the right side: 7.017834424 Break this problem into two subproblems by setting (x + -5.5) equal to 7.017834424 and -7.017834424.Subproblem 1
x + -5.5 = 7.017834424 Simplifying x + -5.5 = 7.017834424 Reorder the terms: -5.5 + x = 7.017834424 Solving -5.5 + x = 7.017834424 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = 7.017834424 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = 7.017834424 + 5.5 x = 7.017834424 + 5.5 Combine like terms: 7.017834424 + 5.5 = 12.517834424 x = 12.517834424 Simplifying x = 12.517834424Subproblem 2
x + -5.5 = -7.017834424 Simplifying x + -5.5 = -7.017834424 Reorder the terms: -5.5 + x = -7.017834424 Solving -5.5 + x = -7.017834424 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.5' to each side of the equation. -5.5 + 5.5 + x = -7.017834424 + 5.5 Combine like terms: -5.5 + 5.5 = 0.0 0.0 + x = -7.017834424 + 5.5 x = -7.017834424 + 5.5 Combine like terms: -7.017834424 + 5.5 = -1.517834424 x = -1.517834424 Simplifying x = -1.517834424Solution
The solution to the problem is based on the solutions from the subproblems. x = {12.517834424, -1.517834424}Solution
x = {12.517834424, -1.517834424}
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