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Simplifying 23.22 = -0.5x2 + x + 24 Reorder the terms: 23.22 = 24 + x + -0.5x2 Solving 23.22 = 24 + x + -0.5x2 Solving for variable 'x'. Combine like terms: 23.22 + -24 = -0.78 -0.78 + -1x + 0.5x2 = 24 + x + -0.5x2 + -24 + -1x + 0.5x2 Reorder the terms: -0.78 + -1x + 0.5x2 = 24 + -24 + x + -1x + -0.5x2 + 0.5x2 Combine like terms: 24 + -24 = 0 -0.78 + -1x + 0.5x2 = 0 + x + -1x + -0.5x2 + 0.5x2 -0.78 + -1x + 0.5x2 = x + -1x + -0.5x2 + 0.5x2 Combine like terms: x + -1x = 0 -0.78 + -1x + 0.5x2 = 0 + -0.5x2 + 0.5x2 -0.78 + -1x + 0.5x2 = -0.5x2 + 0.5x2 Combine like terms: -0.5x2 + 0.5x2 = 0.0 -0.78 + -1x + 0.5x2 = 0.0 Begin completing the square. Divide all terms by 0.5 the coefficient of the squared term: Divide each side by '0.5'. -1.56 + -2x + x2 = 0 Move the constant term to the right: Add '1.56' to each side of the equation. -1.56 + -2x + 1.56 + x2 = 0 + 1.56 Reorder the terms: -1.56 + 1.56 + -2x + x2 = 0 + 1.56 Combine like terms: -1.56 + 1.56 = 0.00 0.00 + -2x + x2 = 0 + 1.56 -2x + x2 = 0 + 1.56 Combine like terms: 0 + 1.56 = 1.56 -2x + x2 = 1.56 The x term is -2x. Take half its coefficient (-1). Square it (1) and add it to both sides. Add '1' to each side of the equation. -2x + 1 + x2 = 1.56 + 1 Reorder the terms: 1 + -2x + x2 = 1.56 + 1 Combine like terms: 1.56 + 1 = 2.56 1 + -2x + x2 = 2.56 Factor a perfect square on the left side: (x + -1)(x + -1) = 2.56 Calculate the square root of the right side: 1.6 Break this problem into two subproblems by setting (x + -1) equal to 1.6 and -1.6.Subproblem 1
x + -1 = 1.6 Simplifying x + -1 = 1.6 Reorder the terms: -1 + x = 1.6 Solving -1 + x = 1.6 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = 1.6 + 1 Combine like terms: -1 + 1 = 0 0 + x = 1.6 + 1 x = 1.6 + 1 Combine like terms: 1.6 + 1 = 2.6 x = 2.6 Simplifying x = 2.6Subproblem 2
x + -1 = -1.6 Simplifying x + -1 = -1.6 Reorder the terms: -1 + x = -1.6 Solving -1 + x = -1.6 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + x = -1.6 + 1 Combine like terms: -1 + 1 = 0 0 + x = -1.6 + 1 x = -1.6 + 1 Combine like terms: -1.6 + 1 = -0.6 x = -0.6 Simplifying x = -0.6Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.6, -0.6}
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