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Simplifying -4.5x2 + 180x + 60 = 0 Reorder the terms: 60 + 180x + -4.5x2 = 0 Solving 60 + 180x + -4.5x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -4.5 the coefficient of the squared term: Divide each side by '-4.5'. -13.33333333 + -40x + x2 = 0 Move the constant term to the right: Add '13.33333333' to each side of the equation. -13.33333333 + -40x + 13.33333333 + x2 = 0 + 13.33333333 Reorder the terms: -13.33333333 + 13.33333333 + -40x + x2 = 0 + 13.33333333 Combine like terms: -13.33333333 + 13.33333333 = 0.00000000 0.00000000 + -40x + x2 = 0 + 13.33333333 -40x + x2 = 0 + 13.33333333 Combine like terms: 0 + 13.33333333 = 13.33333333 -40x + x2 = 13.33333333 The x term is -40x. Take half its coefficient (-20). Square it (400) and add it to both sides. Add '400' to each side of the equation. -40x + 400 + x2 = 13.33333333 + 400 Reorder the terms: 400 + -40x + x2 = 13.33333333 + 400 Combine like terms: 13.33333333 + 400 = 413.33333333 400 + -40x + x2 = 413.33333333 Factor a perfect square on the left side: (x + -20)(x + -20) = 413.33333333 Calculate the square root of the right side: 20.330600909 Break this problem into two subproblems by setting (x + -20) equal to 20.330600909 and -20.330600909.Subproblem 1
x + -20 = 20.330600909 Simplifying x + -20 = 20.330600909 Reorder the terms: -20 + x = 20.330600909 Solving -20 + x = 20.330600909 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '20' to each side of the equation. -20 + 20 + x = 20.330600909 + 20 Combine like terms: -20 + 20 = 0 0 + x = 20.330600909 + 20 x = 20.330600909 + 20 Combine like terms: 20.330600909 + 20 = 40.330600909 x = 40.330600909 Simplifying x = 40.330600909Subproblem 2
x + -20 = -20.330600909 Simplifying x + -20 = -20.330600909 Reorder the terms: -20 + x = -20.330600909 Solving -20 + x = -20.330600909 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '20' to each side of the equation. -20 + 20 + x = -20.330600909 + 20 Combine like terms: -20 + 20 = 0 0 + x = -20.330600909 + 20 x = -20.330600909 + 20 Combine like terms: -20.330600909 + 20 = -0.330600909 x = -0.330600909 Simplifying x = -0.330600909Solution
The solution to the problem is based on the solutions from the subproblems. x = {40.330600909, -0.330600909}
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