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Simplifying 0.249x2 + -4.4x + 13.5 = 0 Reorder the terms: 13.5 + -4.4x + 0.249x2 = 0 Solving 13.5 + -4.4x + 0.249x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 0.249 the coefficient of the squared term: Divide each side by '0.249'. 54.21686747 + -17.67068273x + x2 = 0 Move the constant term to the right: Add '-54.21686747' to each side of the equation. 54.21686747 + -17.67068273x + -54.21686747 + x2 = 0 + -54.21686747 Reorder the terms: 54.21686747 + -54.21686747 + -17.67068273x + x2 = 0 + -54.21686747 Combine like terms: 54.21686747 + -54.21686747 = 0.00000000 0.00000000 + -17.67068273x + x2 = 0 + -54.21686747 -17.67068273x + x2 = 0 + -54.21686747 Combine like terms: 0 + -54.21686747 = -54.21686747 -17.67068273x + x2 = -54.21686747 The x term is -17.67068273x. Take half its coefficient (-8.835341365). Square it (78.06325704) and add it to both sides. Add '78.06325704' to each side of the equation. -17.67068273x + 78.06325704 + x2 = -54.21686747 + 78.06325704 Reorder the terms: 78.06325704 + -17.67068273x + x2 = -54.21686747 + 78.06325704 Combine like terms: -54.21686747 + 78.06325704 = 23.84638957 78.06325704 + -17.67068273x + x2 = 23.84638957 Factor a perfect square on the left side: (x + -8.835341365)(x + -8.835341365) = 23.84638957 Calculate the square root of the right side: 4.88327652 Break this problem into two subproblems by setting (x + -8.835341365) equal to 4.88327652 and -4.88327652.Subproblem 1
x + -8.835341365 = 4.88327652 Simplifying x + -8.835341365 = 4.88327652 Reorder the terms: -8.835341365 + x = 4.88327652 Solving -8.835341365 + x = 4.88327652 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8.835341365' to each side of the equation. -8.835341365 + 8.835341365 + x = 4.88327652 + 8.835341365 Combine like terms: -8.835341365 + 8.835341365 = 0.000000000 0.000000000 + x = 4.88327652 + 8.835341365 x = 4.88327652 + 8.835341365 Combine like terms: 4.88327652 + 8.835341365 = 13.718617885 x = 13.718617885 Simplifying x = 13.718617885Subproblem 2
x + -8.835341365 = -4.88327652 Simplifying x + -8.835341365 = -4.88327652 Reorder the terms: -8.835341365 + x = -4.88327652 Solving -8.835341365 + x = -4.88327652 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8.835341365' to each side of the equation. -8.835341365 + 8.835341365 + x = -4.88327652 + 8.835341365 Combine like terms: -8.835341365 + 8.835341365 = 0.000000000 0.000000000 + x = -4.88327652 + 8.835341365 x = -4.88327652 + 8.835341365 Combine like terms: -4.88327652 + 8.835341365 = 3.952064845 x = 3.952064845 Simplifying x = 3.952064845Solution
The solution to the problem is based on the solutions from the subproblems. x = {13.718617885, 3.952064845}
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