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Simplifying 2x2 + 29x + -8.7 = 0 Reorder the terms: -8.7 + 29x + 2x2 = 0 Solving -8.7 + 29x + 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'. -4.35 + 14.5x + x2 = 0 Move the constant term to the right: Add '4.35' to each side of the equation. -4.35 + 14.5x + 4.35 + x2 = 0 + 4.35 Reorder the terms: -4.35 + 4.35 + 14.5x + x2 = 0 + 4.35 Combine like terms: -4.35 + 4.35 = 0.00 0.00 + 14.5x + x2 = 0 + 4.35 14.5x + x2 = 0 + 4.35 Combine like terms: 0 + 4.35 = 4.35 14.5x + x2 = 4.35 The x term is 14.5x. Take half its coefficient (7.25). Square it (52.5625) and add it to both sides. Add '52.5625' to each side of the equation. 14.5x + 52.5625 + x2 = 4.35 + 52.5625 Reorder the terms: 52.5625 + 14.5x + x2 = 4.35 + 52.5625 Combine like terms: 4.35 + 52.5625 = 56.9125 52.5625 + 14.5x + x2 = 56.9125 Factor a perfect square on the left side: (x + 7.25)(x + 7.25) = 56.9125 Calculate the square root of the right side: 7.544037381 Break this problem into two subproblems by setting (x + 7.25) equal to 7.544037381 and -7.544037381.Subproblem 1
x + 7.25 = 7.544037381 Simplifying x + 7.25 = 7.544037381 Reorder the terms: 7.25 + x = 7.544037381 Solving 7.25 + x = 7.544037381 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7.25' to each side of the equation. 7.25 + -7.25 + x = 7.544037381 + -7.25 Combine like terms: 7.25 + -7.25 = 0.00 0.00 + x = 7.544037381 + -7.25 x = 7.544037381 + -7.25 Combine like terms: 7.544037381 + -7.25 = 0.294037381 x = 0.294037381 Simplifying x = 0.294037381Subproblem 2
x + 7.25 = -7.544037381 Simplifying x + 7.25 = -7.544037381 Reorder the terms: 7.25 + x = -7.544037381 Solving 7.25 + x = -7.544037381 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-7.25' to each side of the equation. 7.25 + -7.25 + x = -7.544037381 + -7.25 Combine like terms: 7.25 + -7.25 = 0.00 0.00 + x = -7.544037381 + -7.25 x = -7.544037381 + -7.25 Combine like terms: -7.544037381 + -7.25 = -14.794037381 x = -14.794037381 Simplifying x = -14.794037381Solution
The solution to the problem is based on the solutions from the subproblems. x = {0.294037381, -14.794037381}
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