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Simplifying 9x2 + -96x + 162 = 0 Reorder the terms: 162 + -96x + 9x2 = 0 Solving 162 + -96x + 9x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '3'. 3(54 + -32x + 3x2) = 0 Ignore the factor 3.Subproblem 1
Set the factor '(54 + -32x + 3x2)' equal to zero and attempt to solve: Simplifying 54 + -32x + 3x2 = 0 Solving 54 + -32x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 18 + -10.66666667x + x2 = 0 Move the constant term to the right: Add '-18' to each side of the equation. 18 + -10.66666667x + -18 + x2 = 0 + -18 Reorder the terms: 18 + -18 + -10.66666667x + x2 = 0 + -18 Combine like terms: 18 + -18 = 0 0 + -10.66666667x + x2 = 0 + -18 -10.66666667x + x2 = 0 + -18 Combine like terms: 0 + -18 = -18 -10.66666667x + x2 = -18 The x term is -10.66666667x. Take half its coefficient (-5.333333335). Square it (28.44444446) and add it to both sides. Add '28.44444446' to each side of the equation. -10.66666667x + 28.44444446 + x2 = -18 + 28.44444446 Reorder the terms: 28.44444446 + -10.66666667x + x2 = -18 + 28.44444446 Combine like terms: -18 + 28.44444446 = 10.44444446 28.44444446 + -10.66666667x + x2 = 10.44444446 Factor a perfect square on the left side: (x + -5.333333335)(x + -5.333333335) = 10.44444446 Calculate the square root of the right side: 3.231786574 Break this problem into two subproblems by setting (x + -5.333333335) equal to 3.231786574 and -3.231786574.Subproblem 1
x + -5.333333335 = 3.231786574 Simplifying x + -5.333333335 = 3.231786574 Reorder the terms: -5.333333335 + x = 3.231786574 Solving -5.333333335 + x = 3.231786574 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.333333335' to each side of the equation. -5.333333335 + 5.333333335 + x = 3.231786574 + 5.333333335 Combine like terms: -5.333333335 + 5.333333335 = 0.000000000 0.000000000 + x = 3.231786574 + 5.333333335 x = 3.231786574 + 5.333333335 Combine like terms: 3.231786574 + 5.333333335 = 8.565119909 x = 8.565119909 Simplifying x = 8.565119909Subproblem 2
x + -5.333333335 = -3.231786574 Simplifying x + -5.333333335 = -3.231786574 Reorder the terms: -5.333333335 + x = -3.231786574 Solving -5.333333335 + x = -3.231786574 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.333333335' to each side of the equation. -5.333333335 + 5.333333335 + x = -3.231786574 + 5.333333335 Combine like terms: -5.333333335 + 5.333333335 = 0.000000000 0.000000000 + x = -3.231786574 + 5.333333335 x = -3.231786574 + 5.333333335 Combine like terms: -3.231786574 + 5.333333335 = 2.101546761 x = 2.101546761 Simplifying x = 2.101546761Solution
The solution to the problem is based on the solutions from the subproblems. x = {8.565119909, 2.101546761}Solution
x = {8.565119909, 2.101546761}
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