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Simplifying 2(3x2 + 6x + -1) + -1(2x + -4) = 0 Reorder the terms: 2(-1 + 6x + 3x2) + -1(2x + -4) = 0 (-1 * 2 + 6x * 2 + 3x2 * 2) + -1(2x + -4) = 0 (-2 + 12x + 6x2) + -1(2x + -4) = 0 Reorder the terms: -2 + 12x + 6x2 + -1(-4 + 2x) = 0 -2 + 12x + 6x2 + (-4 * -1 + 2x * -1) = 0 -2 + 12x + 6x2 + (4 + -2x) = 0 Reorder the terms: -2 + 4 + 12x + -2x + 6x2 = 0 Combine like terms: -2 + 4 = 2 2 + 12x + -2x + 6x2 = 0 Combine like terms: 12x + -2x = 10x 2 + 10x + 6x2 = 0 Solving 2 + 10x + 6x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '2'. 2(1 + 5x + 3x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(1 + 5x + 3x2)' equal to zero and attempt to solve: Simplifying 1 + 5x + 3x2 = 0 Solving 1 + 5x + 3x2 = 0 Begin completing the square. Divide all terms by 3 the coefficient of the squared term: Divide each side by '3'. 0.3333333333 + 1.666666667x + x2 = 0 Move the constant term to the right: Add '-0.3333333333' to each side of the equation. 0.3333333333 + 1.666666667x + -0.3333333333 + x2 = 0 + -0.3333333333 Reorder the terms: 0.3333333333 + -0.3333333333 + 1.666666667x + x2 = 0 + -0.3333333333 Combine like terms: 0.3333333333 + -0.3333333333 = 0.0000000000 0.0000000000 + 1.666666667x + x2 = 0 + -0.3333333333 1.666666667x + x2 = 0 + -0.3333333333 Combine like terms: 0 + -0.3333333333 = -0.3333333333 1.666666667x + x2 = -0.3333333333 The x term is 1.666666667x. Take half its coefficient (0.8333333335). Square it (0.6944444447) and add it to both sides. Add '0.6944444447' to each side of the equation. 1.666666667x + 0.6944444447 + x2 = -0.3333333333 + 0.6944444447 Reorder the terms: 0.6944444447 + 1.666666667x + x2 = -0.3333333333 + 0.6944444447 Combine like terms: -0.3333333333 + 0.6944444447 = 0.3611111114 0.6944444447 + 1.666666667x + x2 = 0.3611111114 Factor a perfect square on the left side: (x + 0.8333333335)(x + 0.8333333335) = 0.3611111114 Calculate the square root of the right side: 0.600925213 Break this problem into two subproblems by setting (x + 0.8333333335) equal to 0.600925213 and -0.600925213.Subproblem 1
x + 0.8333333335 = 0.600925213 Simplifying x + 0.8333333335 = 0.600925213 Reorder the terms: 0.8333333335 + x = 0.600925213 Solving 0.8333333335 + x = 0.600925213 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = 0.600925213 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = 0.600925213 + -0.8333333335 x = 0.600925213 + -0.8333333335 Combine like terms: 0.600925213 + -0.8333333335 = -0.2324081205 x = -0.2324081205 Simplifying x = -0.2324081205Subproblem 2
x + 0.8333333335 = -0.600925213 Simplifying x + 0.8333333335 = -0.600925213 Reorder the terms: 0.8333333335 + x = -0.600925213 Solving 0.8333333335 + x = -0.600925213 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = -0.600925213 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = -0.600925213 + -0.8333333335 x = -0.600925213 + -0.8333333335 Combine like terms: -0.600925213 + -0.8333333335 = -1.4342585465 x = -1.4342585465 Simplifying x = -1.4342585465Solution
The solution to the problem is based on the solutions from the subproblems. x = {-0.2324081205, -1.4342585465}Solution
x = {-0.2324081205, -1.4342585465}
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