9x^2-19x-29=0

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Solution for 9x^2-19x-29=0 equation:


Simplifying
9x2 + -19x + -29 = 0

Reorder the terms:
-29 + -19x + 9x2 = 0

Solving
-29 + -19x + 9x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
9 the coefficient of the squared term: 

Divide each side by '9'.
-3.222222222 + -2.111111111x + x2 = 0

Move the constant term to the right:

Add '3.222222222' to each side of the equation.
-3.222222222 + -2.111111111x + 3.222222222 + x2 = 0 + 3.222222222

Reorder the terms:
-3.222222222 + 3.222222222 + -2.111111111x + x2 = 0 + 3.222222222

Combine like terms: -3.222222222 + 3.222222222 = 0.000000000
0.000000000 + -2.111111111x + x2 = 0 + 3.222222222
-2.111111111x + x2 = 0 + 3.222222222

Combine like terms: 0 + 3.222222222 = 3.222222222
-2.111111111x + x2 = 3.222222222

The x term is -2.111111111x.  Take half its coefficient (-1.055555556).
Square it (1.114197532) and add it to both sides.

Add '1.114197532' to each side of the equation.
-2.111111111x + 1.114197532 + x2 = 3.222222222 + 1.114197532

Reorder the terms:
1.114197532 + -2.111111111x + x2 = 3.222222222 + 1.114197532

Combine like terms: 3.222222222 + 1.114197532 = 4.336419754
1.114197532 + -2.111111111x + x2 = 4.336419754

Factor a perfect square on the left side:
(x + -1.055555556)(x + -1.055555556) = 4.336419754

Calculate the square root of the right side: 2.082407202

Break this problem into two subproblems by setting 
(x + -1.055555556) equal to 2.082407202 and -2.082407202.

Subproblem 1

x + -1.055555556 = 2.082407202 Simplifying x + -1.055555556 = 2.082407202 Reorder the terms: -1.055555556 + x = 2.082407202 Solving -1.055555556 + x = 2.082407202 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.055555556' to each side of the equation. -1.055555556 + 1.055555556 + x = 2.082407202 + 1.055555556 Combine like terms: -1.055555556 + 1.055555556 = 0.000000000 0.000000000 + x = 2.082407202 + 1.055555556 x = 2.082407202 + 1.055555556 Combine like terms: 2.082407202 + 1.055555556 = 3.137962758 x = 3.137962758 Simplifying x = 3.137962758

Subproblem 2

x + -1.055555556 = -2.082407202 Simplifying x + -1.055555556 = -2.082407202 Reorder the terms: -1.055555556 + x = -2.082407202 Solving -1.055555556 + x = -2.082407202 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.055555556' to each side of the equation. -1.055555556 + 1.055555556 + x = -2.082407202 + 1.055555556 Combine like terms: -1.055555556 + 1.055555556 = 0.000000000 0.000000000 + x = -2.082407202 + 1.055555556 x = -2.082407202 + 1.055555556 Combine like terms: -2.082407202 + 1.055555556 = -1.026851646 x = -1.026851646 Simplifying x = -1.026851646

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.137962758, -1.026851646}

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