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Simplifying 2x3 + 12x2 + -9x = 0 Reorder the terms: -9x + 12x2 + 2x3 = 0 Solving -9x + 12x2 + 2x3 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), 'x'. x(-9 + 12x + 2x2) = 0Subproblem 1
Set the factor 'x' equal to zero and attempt to solve: Simplifying x = 0 Solving x = 0 Move all terms containing x to the left, all other terms to the right. Simplifying x = 0Subproblem 2
Set the factor '(-9 + 12x + 2x2)' equal to zero and attempt to solve: Simplifying -9 + 12x + 2x2 = 0 Solving -9 + 12x + 2x2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -4.5 + 6x + x2 = 0 Move the constant term to the right: Add '4.5' to each side of the equation. -4.5 + 6x + 4.5 + x2 = 0 + 4.5 Reorder the terms: -4.5 + 4.5 + 6x + x2 = 0 + 4.5 Combine like terms: -4.5 + 4.5 = 0.0 0.0 + 6x + x2 = 0 + 4.5 6x + x2 = 0 + 4.5 Combine like terms: 0 + 4.5 = 4.5 6x + x2 = 4.5 The x term is 6x. Take half its coefficient (3). Square it (9) and add it to both sides. Add '9' to each side of the equation. 6x + 9 + x2 = 4.5 + 9 Reorder the terms: 9 + 6x + x2 = 4.5 + 9 Combine like terms: 4.5 + 9 = 13.5 9 + 6x + x2 = 13.5 Factor a perfect square on the left side: (x + 3)(x + 3) = 13.5 Calculate the square root of the right side: 3.674234614 Break this problem into two subproblems by setting (x + 3) equal to 3.674234614 and -3.674234614.Subproblem 1
x + 3 = 3.674234614 Simplifying x + 3 = 3.674234614 Reorder the terms: 3 + x = 3.674234614 Solving 3 + x = 3.674234614 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 3.674234614 + -3 Combine like terms: 3 + -3 = 0 0 + x = 3.674234614 + -3 x = 3.674234614 + -3 Combine like terms: 3.674234614 + -3 = 0.674234614 x = 0.674234614 Simplifying x = 0.674234614Subproblem 2
x + 3 = -3.674234614 Simplifying x + 3 = -3.674234614 Reorder the terms: 3 + x = -3.674234614 Solving 3 + x = -3.674234614 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -3.674234614 + -3 Combine like terms: 3 + -3 = 0 0 + x = -3.674234614 + -3 x = -3.674234614 + -3 Combine like terms: -3.674234614 + -3 = -6.674234614 x = -6.674234614 Simplifying x = -6.674234614Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.674234614, -6.674234614}Solution
x = {0, 0.674234614, -6.674234614}
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