0.003x^2-35x-42=0

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Solution for 0.003x^2-35x-42=0 equation:


Simplifying
0.003x2 + -35x + -42 = 0

Reorder the terms:
-42 + -35x + 0.003x2 = 0

Solving
-42 + -35x + 0.003x2 = 0

Solving for variable 'x'.

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

Divide each side by '0.003'.
-14000 + -11666.66667x + x2 = 0

Move the constant term to the right:

Add '14000' to each side of the equation.
-14000 + -11666.66667x + 14000 + x2 = 0 + 14000

Reorder the terms:
-14000 + 14000 + -11666.66667x + x2 = 0 + 14000

Combine like terms: -14000 + 14000 = 0
0 + -11666.66667x + x2 = 0 + 14000
-11666.66667x + x2 = 0 + 14000

Combine like terms: 0 + 14000 = 14000
-11666.66667x + x2 = 14000

The x term is -11666.66667x.  Take half its coefficient (-5833.333335).
Square it (34027777.80) and add it to both sides.

Add '34027777.80' to each side of the equation.
-11666.66667x + 34027777.80 + x2 = 14000 + 34027777.80

Reorder the terms:
34027777.80 + -11666.66667x + x2 = 14000 + 34027777.80

Combine like terms: 14000 + 34027777.80 = 34041777.8
34027777.80 + -11666.66667x + x2 = 34041777.8

Factor a perfect square on the left side:
(x + -5833.333335)(x + -5833.333335) = 34041777.8

Calculate the square root of the right side: 5834.533211835

Break this problem into two subproblems by setting 
(x + -5833.333335) equal to 5834.533211835 and -5834.533211835.

Subproblem 1

x + -5833.333335 = 5834.533211835 Simplifying x + -5833.333335 = 5834.533211835 Reorder the terms: -5833.333335 + x = 5834.533211835 Solving -5833.333335 + x = 5834.533211835 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5833.333335' to each side of the equation. -5833.333335 + 5833.333335 + x = 5834.533211835 + 5833.333335 Combine like terms: -5833.333335 + 5833.333335 = 0.000000 0.000000 + x = 5834.533211835 + 5833.333335 x = 5834.533211835 + 5833.333335 Combine like terms: 5834.533211835 + 5833.333335 = 11667.866546835 x = 11667.866546835 Simplifying x = 11667.866546835

Subproblem 2

x + -5833.333335 = -5834.533211835 Simplifying x + -5833.333335 = -5834.533211835 Reorder the terms: -5833.333335 + x = -5834.533211835 Solving -5833.333335 + x = -5834.533211835 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5833.333335' to each side of the equation. -5833.333335 + 5833.333335 + x = -5834.533211835 + 5833.333335 Combine like terms: -5833.333335 + 5833.333335 = 0.000000 0.000000 + x = -5834.533211835 + 5833.333335 x = -5834.533211835 + 5833.333335 Combine like terms: -5834.533211835 + 5833.333335 = -1.199876835 x = -1.199876835 Simplifying x = -1.199876835

Solution

The solution to the problem is based on the solutions from the subproblems. x = {11667.866546835, -1.199876835}

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