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Simplifying 10x2 + -20x + -26 = 0 Reorder the terms: -26 + -20x + 10x2 = 0 Solving -26 + -20x + 10x2 = 0 Solving for variable 'x'. Factor out the Greatest Common Factor (GCF), '2'. 2(-13 + -10x + 5x2) = 0 Ignore the factor 2.Subproblem 1
Set the factor '(-13 + -10x + 5x2)' equal to zero and attempt to solve: Simplifying -13 + -10x + 5x2 = 0 Solving -13 + -10x + 5x2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. -2.6 + -2x + x2 = 0 Move the constant term to the right: Add '2.6' to each side of the equation. -2.6 + -2x + 2.6 + x2 = 0 + 2.6 Reorder the terms: -2.6 + 2.6 + -2x + x2 = 0 + 2.6 Combine like terms: -2.6 + 2.6 = 0.0 0.0 + -2x + x2 = 0 + 2.6 -2x + x2 = 0 + 2.6 Combine like terms: 0 + 2.6 = 2.6 -2x + x2 = 2.6 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 = 2.6 + 1 Reorder the terms: 1 + -2x + x2 = 2.6 + 1 Combine like terms: 2.6 + 1 = 3.6 1 + -2x + x2 = 3.6 Factor a perfect square on the left side: (x + -1)(x + -1) = 3.6 Calculate the square root of the right side: 1.897366596 Break this problem into two subproblems by setting (x + -1) equal to 1.897366596 and -1.897366596.Subproblem 1
x + -1 = 1.897366596 Simplifying x + -1 = 1.897366596 Reorder the terms: -1 + x = 1.897366596 Solving -1 + x = 1.897366596 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 = 1.897366596 + 1 Combine like terms: -1 + 1 = 0 0 + x = 1.897366596 + 1 x = 1.897366596 + 1 Combine like terms: 1.897366596 + 1 = 2.897366596 x = 2.897366596 Simplifying x = 2.897366596Subproblem 2
x + -1 = -1.897366596 Simplifying x + -1 = -1.897366596 Reorder the terms: -1 + x = -1.897366596 Solving -1 + x = -1.897366596 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 = -1.897366596 + 1 Combine like terms: -1 + 1 = 0 0 + x = -1.897366596 + 1 x = -1.897366596 + 1 Combine like terms: -1.897366596 + 1 = -0.897366596 x = -0.897366596 Simplifying x = -0.897366596Solution
The solution to the problem is based on the solutions from the subproblems. x = {2.897366596, -0.897366596}Solution
x = {2.897366596, -0.897366596}
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