9x^2-35x-5=0

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Solution for 9x^2-35x-5=0 equation:


Simplifying
9x2 + -35x + -5 = 0

Reorder the terms:
-5 + -35x + 9x2 = 0

Solving
-5 + -35x + 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'.
-0.5555555556 + -3.888888889x + x2 = 0

Move the constant term to the right:

Add '0.5555555556' to each side of the equation.
-0.5555555556 + -3.888888889x + 0.5555555556 + x2 = 0 + 0.5555555556

Reorder the terms:
-0.5555555556 + 0.5555555556 + -3.888888889x + x2 = 0 + 0.5555555556

Combine like terms: -0.5555555556 + 0.5555555556 = 0.0000000000
0.0000000000 + -3.888888889x + x2 = 0 + 0.5555555556
-3.888888889x + x2 = 0 + 0.5555555556

Combine like terms: 0 + 0.5555555556 = 0.5555555556
-3.888888889x + x2 = 0.5555555556

The x term is -3.888888889x.  Take half its coefficient (-1.944444445).
Square it (3.780864200) and add it to both sides.

Add '3.780864200' to each side of the equation.
-3.888888889x + 3.780864200 + x2 = 0.5555555556 + 3.780864200

Reorder the terms:
3.780864200 + -3.888888889x + x2 = 0.5555555556 + 3.780864200

Combine like terms: 0.5555555556 + 3.780864200 = 4.3364197556
3.780864200 + -3.888888889x + x2 = 4.3364197556

Factor a perfect square on the left side:
(x + -1.944444445)(x + -1.944444445) = 4.3364197556

Calculate the square root of the right side: 2.082407202

Break this problem into two subproblems by setting 
(x + -1.944444445) equal to 2.082407202 and -2.082407202.

Subproblem 1

x + -1.944444445 = 2.082407202 Simplifying x + -1.944444445 = 2.082407202 Reorder the terms: -1.944444445 + x = 2.082407202 Solving -1.944444445 + x = 2.082407202 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.944444445' to each side of the equation. -1.944444445 + 1.944444445 + x = 2.082407202 + 1.944444445 Combine like terms: -1.944444445 + 1.944444445 = 0.000000000 0.000000000 + x = 2.082407202 + 1.944444445 x = 2.082407202 + 1.944444445 Combine like terms: 2.082407202 + 1.944444445 = 4.026851647 x = 4.026851647 Simplifying x = 4.026851647

Subproblem 2

x + -1.944444445 = -2.082407202 Simplifying x + -1.944444445 = -2.082407202 Reorder the terms: -1.944444445 + x = -2.082407202 Solving -1.944444445 + x = -2.082407202 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.944444445' to each side of the equation. -1.944444445 + 1.944444445 + x = -2.082407202 + 1.944444445 Combine like terms: -1.944444445 + 1.944444445 = 0.000000000 0.000000000 + x = -2.082407202 + 1.944444445 x = -2.082407202 + 1.944444445 Combine like terms: -2.082407202 + 1.944444445 = -0.137962757 x = -0.137962757 Simplifying x = -0.137962757

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.026851647, -0.137962757}

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