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Simplifying 2x2 + 19x + -4 = 0 Reorder the terms: -4 + 19x + 2x2 = 0 Solving -4 + 19x + 2x2 = 0 Solving for variable 'x'. Begin completing the square. Divide all terms by 2 the coefficient of the squared term: Divide each side by '2'. -2 + 9.5x + x2 = 0 Move the constant term to the right: Add '2' to each side of the equation. -2 + 9.5x + 2 + x2 = 0 + 2 Reorder the terms: -2 + 2 + 9.5x + x2 = 0 + 2 Combine like terms: -2 + 2 = 0 0 + 9.5x + x2 = 0 + 2 9.5x + x2 = 0 + 2 Combine like terms: 0 + 2 = 2 9.5x + x2 = 2 The x term is 9.5x. Take half its coefficient (4.75). Square it (22.5625) and add it to both sides. Add '22.5625' to each side of the equation. 9.5x + 22.5625 + x2 = 2 + 22.5625 Reorder the terms: 22.5625 + 9.5x + x2 = 2 + 22.5625 Combine like terms: 2 + 22.5625 = 24.5625 22.5625 + 9.5x + x2 = 24.5625 Factor a perfect square on the left side: (x + 4.75)(x + 4.75) = 24.5625 Calculate the square root of the right side: 4.9560569 Break this problem into two subproblems by setting (x + 4.75) equal to 4.9560569 and -4.9560569.Subproblem 1
x + 4.75 = 4.9560569 Simplifying x + 4.75 = 4.9560569 Reorder the terms: 4.75 + x = 4.9560569 Solving 4.75 + x = 4.9560569 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.75' to each side of the equation. 4.75 + -4.75 + x = 4.9560569 + -4.75 Combine like terms: 4.75 + -4.75 = 0.00 0.00 + x = 4.9560569 + -4.75 x = 4.9560569 + -4.75 Combine like terms: 4.9560569 + -4.75 = 0.2060569 x = 0.2060569 Simplifying x = 0.2060569Subproblem 2
x + 4.75 = -4.9560569 Simplifying x + 4.75 = -4.9560569 Reorder the terms: 4.75 + x = -4.9560569 Solving 4.75 + x = -4.9560569 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.75' to each side of the equation. 4.75 + -4.75 + x = -4.9560569 + -4.75 Combine like terms: 4.75 + -4.75 = 0.00 0.00 + x = -4.9560569 + -4.75 x = -4.9560569 + -4.75 Combine like terms: -4.9560569 + -4.75 = -9.7060569 x = -9.7060569 Simplifying x = -9.7060569Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.2060569, -9.7060569}
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