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Simplifying 2x2 + 19x + -6.3 = 0 Reorder the terms: -6.3 + 19x + 2x2 = 0 Solving -6.3 + 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'. -3.15 + 9.5x + x2 = 0 Move the constant term to the right: Add '3.15' to each side of the equation. -3.15 + 9.5x + 3.15 + x2 = 0 + 3.15 Reorder the terms: -3.15 + 3.15 + 9.5x + x2 = 0 + 3.15 Combine like terms: -3.15 + 3.15 = 0.00 0.00 + 9.5x + x2 = 0 + 3.15 9.5x + x2 = 0 + 3.15 Combine like terms: 0 + 3.15 = 3.15 9.5x + x2 = 3.15 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 = 3.15 + 22.5625 Reorder the terms: 22.5625 + 9.5x + x2 = 3.15 + 22.5625 Combine like terms: 3.15 + 22.5625 = 25.7125 22.5625 + 9.5x + x2 = 25.7125 Factor a perfect square on the left side: (x + 4.75)(x + 4.75) = 25.7125 Calculate the square root of the right side: 5.070749452 Break this problem into two subproblems by setting (x + 4.75) equal to 5.070749452 and -5.070749452.Subproblem 1
x + 4.75 = 5.070749452 Simplifying x + 4.75 = 5.070749452 Reorder the terms: 4.75 + x = 5.070749452 Solving 4.75 + x = 5.070749452 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 = 5.070749452 + -4.75 Combine like terms: 4.75 + -4.75 = 0.00 0.00 + x = 5.070749452 + -4.75 x = 5.070749452 + -4.75 Combine like terms: 5.070749452 + -4.75 = 0.320749452 x = 0.320749452 Simplifying x = 0.320749452Subproblem 2
x + 4.75 = -5.070749452 Simplifying x + 4.75 = -5.070749452 Reorder the terms: 4.75 + x = -5.070749452 Solving 4.75 + x = -5.070749452 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 = -5.070749452 + -4.75 Combine like terms: 4.75 + -4.75 = 0.00 0.00 + x = -5.070749452 + -4.75 x = -5.070749452 + -4.75 Combine like terms: -5.070749452 + -4.75 = -9.820749452 x = -9.820749452 Simplifying x = -9.820749452Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.320749452, -9.820749452}
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