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Simplifying 12x2 + -9x + 1.44 = 0 Reorder the terms: 1.44 + -9x + 12x2 = 0 Solving 1.44 + -9x + 12x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 12 the coefficient of the squared term: Divide each side by '12'. 0.12 + -0.75x + x2 = 0 Move the constant term to the right: Add '-0.12' to each side of the equation. 0.12 + -0.75x + -0.12 + x2 = 0 + -0.12 Reorder the terms: 0.12 + -0.12 + -0.75x + x2 = 0 + -0.12 Combine like terms: 0.12 + -0.12 = 0.00 0.00 + -0.75x + x2 = 0 + -0.12 -0.75x + x2 = 0 + -0.12 Combine like terms: 0 + -0.12 = -0.12 -0.75x + x2 = -0.12 The x term is -0.75x. Take half its coefficient (-0.375). Square it (0.140625) and add it to both sides. Add '0.140625' to each side of the equation. -0.75x + 0.140625 + x2 = -0.12 + 0.140625 Reorder the terms: 0.140625 + -0.75x + x2 = -0.12 + 0.140625 Combine like terms: -0.12 + 0.140625 = 0.020625 0.140625 + -0.75x + x2 = 0.020625 Factor a perfect square on the left side: (x + -0.375)(x + -0.375) = 0.020625 Calculate the square root of the right side: 0.143614066 Break this problem into two subproblems by setting (x + -0.375) equal to 0.143614066 and -0.143614066.Subproblem 1
x + -0.375 = 0.143614066 Simplifying x + -0.375 = 0.143614066 Reorder the terms: -0.375 + x = 0.143614066 Solving -0.375 + x = 0.143614066 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.375' to each side of the equation. -0.375 + 0.375 + x = 0.143614066 + 0.375 Combine like terms: -0.375 + 0.375 = 0.000 0.000 + x = 0.143614066 + 0.375 x = 0.143614066 + 0.375 Combine like terms: 0.143614066 + 0.375 = 0.518614066 x = 0.518614066 Simplifying x = 0.518614066Subproblem 2
x + -0.375 = -0.143614066 Simplifying x + -0.375 = -0.143614066 Reorder the terms: -0.375 + x = -0.143614066 Solving -0.375 + x = -0.143614066 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.375' to each side of the equation. -0.375 + 0.375 + x = -0.143614066 + 0.375 Combine like terms: -0.375 + 0.375 = 0.000 0.000 + x = -0.143614066 + 0.375 x = -0.143614066 + 0.375 Combine like terms: -0.143614066 + 0.375 = 0.231385934 x = 0.231385934 Simplifying x = 0.231385934Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.518614066, 0.231385934}
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