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Simplifying 9x + -2x(x + 4) = -29 Reorder the terms: 9x + -2x(4 + x) = -29 9x + (4 * -2x + x * -2x) = -29 9x + (-8x + -2x2) = -29 Combine like terms: 9x + -8x = 1x 1x + -2x2 = -29 Solving 1x + -2x2 = -29 Solving for variable 'x'. Reorder the terms: 29 + 1x + -2x2 = -29 + 29 Combine like terms: -29 + 29 = 0 29 + 1x + -2x2 = 0 Begin completing the square. Divide all terms by -2 the coefficient of the squared term: Divide each side by '-2'. -14.5 + -0.5x + x2 = 0 Move the constant term to the right: Add '14.5' to each side of the equation. -14.5 + -0.5x + 14.5 + x2 = 0 + 14.5 Reorder the terms: -14.5 + 14.5 + -0.5x + x2 = 0 + 14.5 Combine like terms: -14.5 + 14.5 = 0.0 0.0 + -0.5x + x2 = 0 + 14.5 -0.5x + x2 = 0 + 14.5 Combine like terms: 0 + 14.5 = 14.5 -0.5x + x2 = 14.5 The x term is -0.5x. Take half its coefficient (-0.25). Square it (0.0625) and add it to both sides. Add '0.0625' to each side of the equation. -0.5x + 0.0625 + x2 = 14.5 + 0.0625 Reorder the terms: 0.0625 + -0.5x + x2 = 14.5 + 0.0625 Combine like terms: 14.5 + 0.0625 = 14.5625 0.0625 + -0.5x + x2 = 14.5625 Factor a perfect square on the left side: (x + -0.25)(x + -0.25) = 14.5625 Calculate the square root of the right side: 3.816084381 Break this problem into two subproblems by setting (x + -0.25) equal to 3.816084381 and -3.816084381.Subproblem 1
x + -0.25 = 3.816084381 Simplifying x + -0.25 = 3.816084381 Reorder the terms: -0.25 + x = 3.816084381 Solving -0.25 + x = 3.816084381 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = 3.816084381 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = 3.816084381 + 0.25 x = 3.816084381 + 0.25 Combine like terms: 3.816084381 + 0.25 = 4.066084381 x = 4.066084381 Simplifying x = 4.066084381Subproblem 2
x + -0.25 = -3.816084381 Simplifying x + -0.25 = -3.816084381 Reorder the terms: -0.25 + x = -3.816084381 Solving -0.25 + x = -3.816084381 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.25' to each side of the equation. -0.25 + 0.25 + x = -3.816084381 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.00 + x = -3.816084381 + 0.25 x = -3.816084381 + 0.25 Combine like terms: -3.816084381 + 0.25 = -3.566084381 x = -3.566084381 Simplifying x = -3.566084381Solution
The solution to the problem is based on the solutions from the subproblems. x = {4.066084381, -3.566084381}
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