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Simplifying 2x + 6x2 + -18x3 = 0 Solving 2x + 6x2 + -18x3 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '2x'. 2x(1 + 3x + -9x2) = 0 Ignore the factor 2.Subproblem 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 '(1 + 3x + -9x2)' equal to zero and attempt to solve: Simplifying 1 + 3x + -9x2 = 0 Solving 1 + 3x + -9x2 = 0 Begin completing the square. Divide all terms by -9 the coefficient of the squared term: Divide each side by '-9'. -0.1111111111 + -0.3333333333x + x2 = 0 Move the constant term to the right: Add '0.1111111111' to each side of the equation. -0.1111111111 + -0.3333333333x + 0.1111111111 + x2 = 0 + 0.1111111111 Reorder the terms: -0.1111111111 + 0.1111111111 + -0.3333333333x + x2 = 0 + 0.1111111111 Combine like terms: -0.1111111111 + 0.1111111111 = 0.0000000000 0.0000000000 + -0.3333333333x + x2 = 0 + 0.1111111111 -0.3333333333x + x2 = 0 + 0.1111111111 Combine like terms: 0 + 0.1111111111 = 0.1111111111 -0.3333333333x + x2 = 0.1111111111 The x term is -0.3333333333x. Take half its coefficient (-0.1666666667). Square it (0.02777777779) and add it to both sides. Add '0.02777777779' to each side of the equation. -0.3333333333x + 0.02777777779 + x2 = 0.1111111111 + 0.02777777779 Reorder the terms: 0.02777777779 + -0.3333333333x + x2 = 0.1111111111 + 0.02777777779 Combine like terms: 0.1111111111 + 0.02777777779 = 0.13888888889 0.02777777779 + -0.3333333333x + x2 = 0.13888888889 Factor a perfect square on the left side: (x + -0.1666666667)(x + -0.1666666667) = 0.13888888889 Calculate the square root of the right side: 0.372677996 Break this problem into two subproblems by setting (x + -0.1666666667) equal to 0.372677996 and -0.372677996.Subproblem 1
x + -0.1666666667 = 0.372677996 Simplifying x + -0.1666666667 = 0.372677996 Reorder the terms: -0.1666666667 + x = 0.372677996 Solving -0.1666666667 + x = 0.372677996 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1666666667' to each side of the equation. -0.1666666667 + 0.1666666667 + x = 0.372677996 + 0.1666666667 Combine like terms: -0.1666666667 + 0.1666666667 = 0.0000000000 0.0000000000 + x = 0.372677996 + 0.1666666667 x = 0.372677996 + 0.1666666667 Combine like terms: 0.372677996 + 0.1666666667 = 0.5393446627 x = 0.5393446627 Simplifying x = 0.5393446627Subproblem 2
x + -0.1666666667 = -0.372677996 Simplifying x + -0.1666666667 = -0.372677996 Reorder the terms: -0.1666666667 + x = -0.372677996 Solving -0.1666666667 + x = -0.372677996 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1666666667' to each side of the equation. -0.1666666667 + 0.1666666667 + x = -0.372677996 + 0.1666666667 Combine like terms: -0.1666666667 + 0.1666666667 = 0.0000000000 0.0000000000 + x = -0.372677996 + 0.1666666667 x = -0.372677996 + 0.1666666667 Combine like terms: -0.372677996 + 0.1666666667 = -0.2060113293 x = -0.2060113293 Simplifying x = -0.2060113293Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.5393446627, -0.2060113293}Solution
x = {0, 0.5393446627, -0.2060113293}
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