2970x(198x-178)+7921=0

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Solution for 2970x(198x-178)+7921=0 equation:


Simplifying
2970x(198x + -178) + 7921 = 0

Reorder the terms:
2970x(-178 + 198x) + 7921 = 0
(-178 * 2970x + 198x * 2970x) + 7921 = 0
(-528660x + 588060x2) + 7921 = 0

Reorder the terms:
7921 + -528660x + 588060x2 = 0

Solving
7921 + -528660x + 588060x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
588060 the coefficient of the squared term: 

Divide each side by '588060'.
0.01346971397 + -0.898989899x + x2 = 0.0

Move the constant term to the right:

Add '-0.01346971397' to each side of the equation.
0.01346971397 + -0.898989899x + -0.01346971397 + x2 = 0.0 + -0.01346971397

Reorder the terms:
0.01346971397 + -0.01346971397 + -0.898989899x + x2 = 0.0 + -0.01346971397

Combine like terms: 0.01346971397 + -0.01346971397 = 0.00000000000
0.00000000000 + -0.898989899x + x2 = 0.0 + -0.01346971397
-0.898989899x + x2 = 0.0 + -0.01346971397

Combine like terms: 0.0 + -0.01346971397 = -0.01346971397
-0.898989899x + x2 = -0.01346971397

The x term is -0.898989899x.  Take half its coefficient (-0.4494949495).
Square it (0.2020457096) and add it to both sides.

Add '0.2020457096' to each side of the equation.
-0.898989899x + 0.2020457096 + x2 = -0.01346971397 + 0.2020457096

Reorder the terms:
0.2020457096 + -0.898989899x + x2 = -0.01346971397 + 0.2020457096

Combine like terms: -0.01346971397 + 0.2020457096 = 0.18857599563
0.2020457096 + -0.898989899x + x2 = 0.18857599563

Factor a perfect square on the left side:
(x + -0.4494949495)(x + -0.4494949495) = 0.18857599563

Calculate the square root of the right side: 0.434253377

Break this problem into two subproblems by setting 
(x + -0.4494949495) equal to 0.434253377 and -0.434253377.

Subproblem 1

x + -0.4494949495 = 0.434253377 Simplifying x + -0.4494949495 = 0.434253377 Reorder the terms: -0.4494949495 + x = 0.434253377 Solving -0.4494949495 + x = 0.434253377 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4494949495' to each side of the equation. -0.4494949495 + 0.4494949495 + x = 0.434253377 + 0.4494949495 Combine like terms: -0.4494949495 + 0.4494949495 = 0.0000000000 0.0000000000 + x = 0.434253377 + 0.4494949495 x = 0.434253377 + 0.4494949495 Combine like terms: 0.434253377 + 0.4494949495 = 0.8837483265 x = 0.8837483265 Simplifying x = 0.8837483265

Subproblem 2

x + -0.4494949495 = -0.434253377 Simplifying x + -0.4494949495 = -0.434253377 Reorder the terms: -0.4494949495 + x = -0.434253377 Solving -0.4494949495 + x = -0.434253377 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.4494949495' to each side of the equation. -0.4494949495 + 0.4494949495 + x = -0.434253377 + 0.4494949495 Combine like terms: -0.4494949495 + 0.4494949495 = 0.0000000000 0.0000000000 + x = -0.434253377 + 0.4494949495 x = -0.434253377 + 0.4494949495 Combine like terms: -0.434253377 + 0.4494949495 = 0.0152415725 x = 0.0152415725 Simplifying x = 0.0152415725

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.8837483265, 0.0152415725}

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