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Simplifying 2(X2 + 2X) = 3 Reorder the terms: 2(2X + X2) = 3 (2X * 2 + X2 * 2) = 3 (4X + 2X2) = 3 Solving 4X + 2X2 = 3 Solving for variable 'X'. Reorder the terms: -3 + 4X + 2X2 = 3 + -3 Combine like terms: 3 + -3 = 0 -3 + 4X + 2X2 = 0 Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -1.5 + 2X + X2 = 0 Move the constant term to the right: Add '1.5' to each side of the equation. -1.5 + 2X + 1.5 + X2 = 0 + 1.5 Reorder the terms: -1.5 + 1.5 + 2X + X2 = 0 + 1.5 Combine like terms: -1.5 + 1.5 = 0.0 0.0 + 2X + X2 = 0 + 1.5 2X + X2 = 0 + 1.5 Combine like terms: 0 + 1.5 = 1.5 2X + X2 = 1.5 The X term is 2X. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2X + 1 + X2 = 1.5 + 1 Reorder the terms: 1 + 2X + X2 = 1.5 + 1 Combine like terms: 1.5 + 1 = 2.5 1 + 2X + X2 = 2.5 Factor a perfect square on the left side: (X + 1)(X + 1) = 2.5 Calculate the square root of the right side: 1.58113883 Break this problem into two subproblems by setting (X + 1) equal to 1.58113883 and -1.58113883.Subproblem 1
X + 1 = 1.58113883 Simplifying X + 1 = 1.58113883 Reorder the terms: 1 + X = 1.58113883 Solving 1 + X = 1.58113883 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + X = 1.58113883 + -1 Combine like terms: 1 + -1 = 0 0 + X = 1.58113883 + -1 X = 1.58113883 + -1 Combine like terms: 1.58113883 + -1 = 0.58113883 X = 0.58113883 Simplifying X = 0.58113883Subproblem 2
X + 1 = -1.58113883 Simplifying X + 1 = -1.58113883 Reorder the terms: 1 + X = -1.58113883 Solving 1 + X = -1.58113883 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + X = -1.58113883 + -1 Combine like terms: 1 + -1 = 0 0 + X = -1.58113883 + -1 X = -1.58113883 + -1 Combine like terms: -1.58113883 + -1 = -2.58113883 X = -2.58113883 Simplifying X = -2.58113883Solution
The solution to the problem is based on the solutions from the subproblems. X = {0.58113883, -2.58113883}
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