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Simplifying 2 + -9X = 3X2 Solving 2 + -9X = 3X2 Solving for variable 'X'. Combine like terms: 3X2 + -3X2 = 0 2 + -9X + -3X2 = 0 Begin completing the square. Divide all terms by -3 the coefficient of the squared term: Divide each side by '-3'. -0.6666666667 + 3X + X2 = 0 Move the constant term to the right: Add '0.6666666667' to each side of the equation. -0.6666666667 + 3X + 0.6666666667 + X2 = 0 + 0.6666666667 Reorder the terms: -0.6666666667 + 0.6666666667 + 3X + X2 = 0 + 0.6666666667 Combine like terms: -0.6666666667 + 0.6666666667 = 0.0000000000 0.0000000000 + 3X + X2 = 0 + 0.6666666667 3X + X2 = 0 + 0.6666666667 Combine like terms: 0 + 0.6666666667 = 0.6666666667 3X + X2 = 0.6666666667 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 = 0.6666666667 + 2.25 Reorder the terms: 2.25 + 3X + X2 = 0.6666666667 + 2.25 Combine like terms: 0.6666666667 + 2.25 = 2.9166666667 2.25 + 3X + X2 = 2.9166666667 Factor a perfect square on the left side: (X + 1.5)(X + 1.5) = 2.9166666667 Calculate the square root of the right side: 1.707825128 Break this problem into two subproblems by setting (X + 1.5) equal to 1.707825128 and -1.707825128.Subproblem 1
X + 1.5 = 1.707825128 Simplifying X + 1.5 = 1.707825128 Reorder the terms: 1.5 + X = 1.707825128 Solving 1.5 + X = 1.707825128 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 = 1.707825128 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + X = 1.707825128 + -1.5 X = 1.707825128 + -1.5 Combine like terms: 1.707825128 + -1.5 = 0.207825128 X = 0.207825128 Simplifying X = 0.207825128Subproblem 2
X + 1.5 = -1.707825128 Simplifying X + 1.5 = -1.707825128 Reorder the terms: 1.5 + X = -1.707825128 Solving 1.5 + X = -1.707825128 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 = -1.707825128 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + X = -1.707825128 + -1.5 X = -1.707825128 + -1.5 Combine like terms: -1.707825128 + -1.5 = -3.207825128 X = -3.207825128 Simplifying X = -3.207825128Solution
The solution to the problem is based on the solutions from the subproblems. X = {0.207825128, -3.207825128}
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