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Simplifying 250 = 0.05(x * x) + 1.1x Multiply x * x 250 = 0.05(x2) + 1.1x Reorder the terms: 250 = 1.1x + 0.05x2 Solving 250 = 1.1x + 0.05x2 Solving for variable 'x'. Reorder the terms: 250 + -1.1x + -0.05x2 = 1.1x + -1.1x + 0.05x2 + -0.05x2 Combine like terms: 1.1x + -1.1x = 0.0 250 + -1.1x + -0.05x2 = 0.0 + 0.05x2 + -0.05x2 250 + -1.1x + -0.05x2 = 0.05x2 + -0.05x2 Combine like terms: 0.05x2 + -0.05x2 = 0.00 250 + -1.1x + -0.05x2 = 0.00 Begin completing the square. Divide all terms by -0.05 the coefficient of the squared term: Divide each side by '-0.05'. -5000 + 22x + x2 = 0 Move the constant term to the right: Add '5000' to each side of the equation. -5000 + 22x + 5000 + x2 = 0 + 5000 Reorder the terms: -5000 + 5000 + 22x + x2 = 0 + 5000 Combine like terms: -5000 + 5000 = 0 0 + 22x + x2 = 0 + 5000 22x + x2 = 0 + 5000 Combine like terms: 0 + 5000 = 5000 22x + x2 = 5000 The x term is 22x. Take half its coefficient (11). Square it (121) and add it to both sides. Add '121' to each side of the equation. 22x + 121 + x2 = 5000 + 121 Reorder the terms: 121 + 22x + x2 = 5000 + 121 Combine like terms: 5000 + 121 = 5121 121 + 22x + x2 = 5121 Factor a perfect square on the left side: (x + 11)(x + 11) = 5121 Calculate the square root of the right side: 71.561162651 Break this problem into two subproblems by setting (x + 11) equal to 71.561162651 and -71.561162651.Subproblem 1
x + 11 = 71.561162651 Simplifying x + 11 = 71.561162651 Reorder the terms: 11 + x = 71.561162651 Solving 11 + x = 71.561162651 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + x = 71.561162651 + -11 Combine like terms: 11 + -11 = 0 0 + x = 71.561162651 + -11 x = 71.561162651 + -11 Combine like terms: 71.561162651 + -11 = 60.561162651 x = 60.561162651 Simplifying x = 60.561162651Subproblem 2
x + 11 = -71.561162651 Simplifying x + 11 = -71.561162651 Reorder the terms: 11 + x = -71.561162651 Solving 11 + x = -71.561162651 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + x = -71.561162651 + -11 Combine like terms: 11 + -11 = 0 0 + x = -71.561162651 + -11 x = -71.561162651 + -11 Combine like terms: -71.561162651 + -11 = -82.561162651 x = -82.561162651 Simplifying x = -82.561162651Solution
The solution to the problem is based on the solutions from the subproblems. x = {60.561162651, -82.561162651}
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