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Simplifying x = 3x2 + -8x + -3 Reorder the terms: x = -3 + -8x + 3x2 Solving x = -3 + -8x + 3x2 Solving for variable 'x'. Reorder the terms: 3 + x + 8x + -3x2 = -3 + -8x + 3x2 + 3 + 8x + -3x2 Combine like terms: x + 8x = 9x 3 + 9x + -3x2 = -3 + -8x + 3x2 + 3 + 8x + -3x2 Reorder the terms: 3 + 9x + -3x2 = -3 + 3 + -8x + 8x + 3x2 + -3x2 Combine like terms: -3 + 3 = 0 3 + 9x + -3x2 = 0 + -8x + 8x + 3x2 + -3x2 3 + 9x + -3x2 = -8x + 8x + 3x2 + -3x2 Combine like terms: -8x + 8x = 0 3 + 9x + -3x2 = 0 + 3x2 + -3x2 3 + 9x + -3x2 = 3x2 + -3x2 Combine like terms: 3x2 + -3x2 = 0 3 + 9x + -3x2 = 0 Factor out the Greatest Common Factor (GCF), '3'. 3(1 + 3x + -1x2) = 0 Ignore the factor 3.Subproblem 1
Set the factor '(1 + 3x + -1x2)' equal to zero and attempt to solve: Simplifying 1 + 3x + -1x2 = 0 Solving 1 + 3x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. -1 + -3x + x2 = 0 Move the constant term to the right: Add '1' to each side of the equation. -1 + -3x + 1 + x2 = 0 + 1 Reorder the terms: -1 + 1 + -3x + x2 = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -3x + x2 = 0 + 1 -3x + x2 = 0 + 1 Combine like terms: 0 + 1 = 1 -3x + x2 = 1 The x term is -3x. Take half its coefficient (-1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. -3x + 2.25 + x2 = 1 + 2.25 Reorder the terms: 2.25 + -3x + x2 = 1 + 2.25 Combine like terms: 1 + 2.25 = 3.25 2.25 + -3x + x2 = 3.25 Factor a perfect square on the left side: (x + -1.5)(x + -1.5) = 3.25 Calculate the square root of the right side: 1.802775638 Break this problem into two subproblems by setting (x + -1.5) equal to 1.802775638 and -1.802775638.Subproblem 1
x + -1.5 = 1.802775638 Simplifying x + -1.5 = 1.802775638 Reorder the terms: -1.5 + x = 1.802775638 Solving -1.5 + x = 1.802775638 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = 1.802775638 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = 1.802775638 + 1.5 x = 1.802775638 + 1.5 Combine like terms: 1.802775638 + 1.5 = 3.302775638 x = 3.302775638 Simplifying x = 3.302775638Subproblem 2
x + -1.5 = -1.802775638 Simplifying x + -1.5 = -1.802775638 Reorder the terms: -1.5 + x = -1.802775638 Solving -1.5 + x = -1.802775638 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.5' to each side of the equation. -1.5 + 1.5 + x = -1.802775638 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + x = -1.802775638 + 1.5 x = -1.802775638 + 1.5 Combine like terms: -1.802775638 + 1.5 = -0.302775638 x = -0.302775638 Simplifying x = -0.302775638Solution
The solution to the problem is based on the solutions from the subproblems. x = {3.302775638, -0.302775638}Solution
x = {3.302775638, -0.302775638}
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