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Simplifying 1 + -2(3x2 + x + -1) = 0 Reorder the terms: 1 + -2(-1 + x + 3x2) = 0 1 + (-1 * -2 + x * -2 + 3x2 * -2) = 0 1 + (2 + -2x + -6x2) = 0 Combine like terms: 1 + 2 = 3 3 + -2x + -6x2 = 0 Solving 3 + -2x + -6x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by -6 the coefficient of the squared term: Divide each side by '-6'. -0.5 + 0.3333333333x + x2 = 0 Move the constant term to the right: Add '0.5' to each side of the equation. -0.5 + 0.3333333333x + 0.5 + x2 = 0 + 0.5 Reorder the terms: -0.5 + 0.5 + 0.3333333333x + x2 = 0 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + 0.3333333333x + x2 = 0 + 0.5 0.3333333333x + x2 = 0 + 0.5 Combine like terms: 0 + 0.5 = 0.5 0.3333333333x + x2 = 0.5 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 = 0.5 + 0.02777777779 Reorder the terms: 0.02777777779 + 0.3333333333x + x2 = 0.5 + 0.02777777779 Combine like terms: 0.5 + 0.02777777779 = 0.52777777779 0.02777777779 + 0.3333333333x + x2 = 0.52777777779 Factor a perfect square on the left side: (x + 0.1666666667)(x + 0.1666666667) = 0.52777777779 Calculate the square root of the right side: 0.726483157 Break this problem into two subproblems by setting (x + 0.1666666667) equal to 0.726483157 and -0.726483157.Subproblem 1
x + 0.1666666667 = 0.726483157 Simplifying x + 0.1666666667 = 0.726483157 Reorder the terms: 0.1666666667 + x = 0.726483157 Solving 0.1666666667 + x = 0.726483157 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 = 0.726483157 + -0.1666666667 Combine like terms: 0.1666666667 + -0.1666666667 = 0.0000000000 0.0000000000 + x = 0.726483157 + -0.1666666667 x = 0.726483157 + -0.1666666667 Combine like terms: 0.726483157 + -0.1666666667 = 0.5598164903 x = 0.5598164903 Simplifying x = 0.5598164903Subproblem 2
x + 0.1666666667 = -0.726483157 Simplifying x + 0.1666666667 = -0.726483157 Reorder the terms: 0.1666666667 + x = -0.726483157 Solving 0.1666666667 + x = -0.726483157 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 = -0.726483157 + -0.1666666667 Combine like terms: 0.1666666667 + -0.1666666667 = 0.0000000000 0.0000000000 + x = -0.726483157 + -0.1666666667 x = -0.726483157 + -0.1666666667 Combine like terms: -0.726483157 + -0.1666666667 = -0.8931498237 x = -0.8931498237 Simplifying x = -0.8931498237Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.5598164903, -0.8931498237}
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