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Simplifying -1(0.3x + 3) = 0.15x(-1x + 10) Reorder the terms: -1(3 + 0.3x) = 0.15x(-1x + 10) (3 * -1 + 0.3x * -1) = 0.15x(-1x + 10) (-3 + -0.3x) = 0.15x(-1x + 10) Reorder the terms: -3 + -0.3x = 0.15x(10 + -1x) -3 + -0.3x = (10 * 0.15x + -1x * 0.15x) -3 + -0.3x = (1.5x + -0.15x2) Solving -3 + -0.3x = 1.5x + -0.15x2 Solving for variable 'x'. Combine like terms: -0.3x + -1.5x = -1.8x -3 + -1.8x + 0.15x2 = 1.5x + -0.15x2 + -1.5x + 0.15x2 Reorder the terms: -3 + -1.8x + 0.15x2 = 1.5x + -1.5x + -0.15x2 + 0.15x2 Combine like terms: 1.5x + -1.5x = 0.0 -3 + -1.8x + 0.15x2 = 0.0 + -0.15x2 + 0.15x2 -3 + -1.8x + 0.15x2 = -0.15x2 + 0.15x2 Combine like terms: -0.15x2 + 0.15x2 = 0.00 -3 + -1.8x + 0.15x2 = 0.00 Begin completing the square. Divide all terms by 0.15 the coefficient of the squared term: Divide each side by '0.15'. -20 + -12x + x2 = 0 Move the constant term to the right: Add '20' to each side of the equation. -20 + -12x + 20 + x2 = 0 + 20 Reorder the terms: -20 + 20 + -12x + x2 = 0 + 20 Combine like terms: -20 + 20 = 0 0 + -12x + x2 = 0 + 20 -12x + x2 = 0 + 20 Combine like terms: 0 + 20 = 20 -12x + x2 = 20 The x term is -12x. Take half its coefficient (-6). Square it (36) and add it to both sides. Add '36' to each side of the equation. -12x + 36 + x2 = 20 + 36 Reorder the terms: 36 + -12x + x2 = 20 + 36 Combine like terms: 20 + 36 = 56 36 + -12x + x2 = 56 Factor a perfect square on the left side: (x + -6)(x + -6) = 56 Calculate the square root of the right side: 7.483314774 Break this problem into two subproblems by setting (x + -6) equal to 7.483314774 and -7.483314774.Subproblem 1
x + -6 = 7.483314774 Simplifying x + -6 = 7.483314774 Reorder the terms: -6 + x = 7.483314774 Solving -6 + x = 7.483314774 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = 7.483314774 + 6 Combine like terms: -6 + 6 = 0 0 + x = 7.483314774 + 6 x = 7.483314774 + 6 Combine like terms: 7.483314774 + 6 = 13.483314774 x = 13.483314774 Simplifying x = 13.483314774Subproblem 2
x + -6 = -7.483314774 Simplifying x + -6 = -7.483314774 Reorder the terms: -6 + x = -7.483314774 Solving -6 + x = -7.483314774 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = -7.483314774 + 6 Combine like terms: -6 + 6 = 0 0 + x = -7.483314774 + 6 x = -7.483314774 + 6 Combine like terms: -7.483314774 + 6 = -1.483314774 x = -1.483314774 Simplifying x = -1.483314774Solution
The solution to the problem is based on the solutions from the subproblems. x = {13.483314774, -1.483314774}
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