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Simplifying 5x2 + -25x + -1 = 0 Reorder the terms: -1 + -25x + 5x2 = 0 Solving -1 + -25x + 5x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. -0.2 + -5x + x2 = 0 Move the constant term to the right: Add '0.2' to each side of the equation. -0.2 + -5x + 0.2 + x2 = 0 + 0.2 Reorder the terms: -0.2 + 0.2 + -5x + x2 = 0 + 0.2 Combine like terms: -0.2 + 0.2 = 0.0 0.0 + -5x + x2 = 0 + 0.2 -5x + x2 = 0 + 0.2 Combine like terms: 0 + 0.2 = 0.2 -5x + x2 = 0.2 The x term is -5x. Take half its coefficient (-2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. -5x + 6.25 + x2 = 0.2 + 6.25 Reorder the terms: 6.25 + -5x + x2 = 0.2 + 6.25 Combine like terms: 0.2 + 6.25 = 6.45 6.25 + -5x + x2 = 6.45 Factor a perfect square on the left side: (x + -2.5)(x + -2.5) = 6.45 Calculate the square root of the right side: 2.53968502 Break this problem into two subproblems by setting (x + -2.5) equal to 2.53968502 and -2.53968502.Subproblem 1
x + -2.5 = 2.53968502 Simplifying x + -2.5 = 2.53968502 Reorder the terms: -2.5 + x = 2.53968502 Solving -2.5 + x = 2.53968502 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = 2.53968502 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = 2.53968502 + 2.5 x = 2.53968502 + 2.5 Combine like terms: 2.53968502 + 2.5 = 5.03968502 x = 5.03968502 Simplifying x = 5.03968502Subproblem 2
x + -2.5 = -2.53968502 Simplifying x + -2.5 = -2.53968502 Reorder the terms: -2.5 + x = -2.53968502 Solving -2.5 + x = -2.53968502 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.5' to each side of the equation. -2.5 + 2.5 + x = -2.53968502 + 2.5 Combine like terms: -2.5 + 2.5 = 0.0 0.0 + x = -2.53968502 + 2.5 x = -2.53968502 + 2.5 Combine like terms: -2.53968502 + 2.5 = -0.03968502 x = -0.03968502 Simplifying x = -0.03968502Solution
The solution to the problem is based on the solutions from the subproblems. x = {5.03968502, -0.03968502}
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