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Simplifying 2x2 + 33x + -7.3 = 0 Reorder the terms: -7.3 + 33x + 2x2 = 0 Solving -7.3 + 33x + 2x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -3.65 + 16.5x + x2 = 0 Move the constant term to the right: Add '3.65' to each side of the equation. -3.65 + 16.5x + 3.65 + x2 = 0 + 3.65 Reorder the terms: -3.65 + 3.65 + 16.5x + x2 = 0 + 3.65 Combine like terms: -3.65 + 3.65 = 0.00 0.00 + 16.5x + x2 = 0 + 3.65 16.5x + x2 = 0 + 3.65 Combine like terms: 0 + 3.65 = 3.65 16.5x + x2 = 3.65 The x term is 16.5x. Take half its coefficient (8.25). Square it (68.0625) and add it to both sides. Add '68.0625' to each side of the equation. 16.5x + 68.0625 + x2 = 3.65 + 68.0625 Reorder the terms: 68.0625 + 16.5x + x2 = 3.65 + 68.0625 Combine like terms: 3.65 + 68.0625 = 71.7125 68.0625 + 16.5x + x2 = 71.7125 Factor a perfect square on the left side: (x + 8.25)(x + 8.25) = 71.7125 Calculate the square root of the right side: 8.468323329 Break this problem into two subproblems by setting (x + 8.25) equal to 8.468323329 and -8.468323329.Subproblem 1
x + 8.25 = 8.468323329 Simplifying x + 8.25 = 8.468323329 Reorder the terms: 8.25 + x = 8.468323329 Solving 8.25 + x = 8.468323329 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8.25' to each side of the equation. 8.25 + -8.25 + x = 8.468323329 + -8.25 Combine like terms: 8.25 + -8.25 = 0.00 0.00 + x = 8.468323329 + -8.25 x = 8.468323329 + -8.25 Combine like terms: 8.468323329 + -8.25 = 0.218323329 x = 0.218323329 Simplifying x = 0.218323329Subproblem 2
x + 8.25 = -8.468323329 Simplifying x + 8.25 = -8.468323329 Reorder the terms: 8.25 + x = -8.468323329 Solving 8.25 + x = -8.468323329 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-8.25' to each side of the equation. 8.25 + -8.25 + x = -8.468323329 + -8.25 Combine like terms: 8.25 + -8.25 = 0.00 0.00 + x = -8.468323329 + -8.25 x = -8.468323329 + -8.25 Combine like terms: -8.468323329 + -8.25 = -16.718323329 x = -16.718323329 Simplifying x = -16.718323329Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.218323329, -16.718323329}
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