3x^2+5x-2200=0

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Solution for 3x^2+5x-2200=0 equation:


Simplifying
3x2 + 5x + -2200 = 0

Reorder the terms:
-2200 + 5x + 3x2 = 0

Solving
-2200 + 5x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
-733.3333333 + 1.666666667x + x2 = 0

Move the constant term to the right:

Add '733.3333333' to each side of the equation.
-733.3333333 + 1.666666667x + 733.3333333 + x2 = 0 + 733.3333333

Reorder the terms:
-733.3333333 + 733.3333333 + 1.666666667x + x2 = 0 + 733.3333333

Combine like terms: -733.3333333 + 733.3333333 = 0.0000000
0.0000000 + 1.666666667x + x2 = 0 + 733.3333333
1.666666667x + x2 = 0 + 733.3333333

Combine like terms: 0 + 733.3333333 = 733.3333333
1.666666667x + x2 = 733.3333333

The x term is 1.666666667x.  Take half its coefficient (0.8333333335).
Square it (0.6944444447) and add it to both sides.

Add '0.6944444447' to each side of the equation.
1.666666667x + 0.6944444447 + x2 = 733.3333333 + 0.6944444447

Reorder the terms:
0.6944444447 + 1.666666667x + x2 = 733.3333333 + 0.6944444447

Combine like terms: 733.3333333 + 0.6944444447 = 734.0277777447
0.6944444447 + 1.666666667x + x2 = 734.0277777447

Factor a perfect square on the left side:
(x + 0.8333333335)(x + 0.8333333335) = 734.0277777447

Calculate the square root of the right side: 27.092947011

Break this problem into two subproblems by setting 
(x + 0.8333333335) equal to 27.092947011 and -27.092947011.

Subproblem 1

x + 0.8333333335 = 27.092947011 Simplifying x + 0.8333333335 = 27.092947011 Reorder the terms: 0.8333333335 + x = 27.092947011 Solving 0.8333333335 + x = 27.092947011 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = 27.092947011 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = 27.092947011 + -0.8333333335 x = 27.092947011 + -0.8333333335 Combine like terms: 27.092947011 + -0.8333333335 = 26.2596136775 x = 26.2596136775 Simplifying x = 26.2596136775

Subproblem 2

x + 0.8333333335 = -27.092947011 Simplifying x + 0.8333333335 = -27.092947011 Reorder the terms: 0.8333333335 + x = -27.092947011 Solving 0.8333333335 + x = -27.092947011 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = -27.092947011 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = -27.092947011 + -0.8333333335 x = -27.092947011 + -0.8333333335 Combine like terms: -27.092947011 + -0.8333333335 = -27.9262803445 x = -27.9262803445 Simplifying x = -27.9262803445

Solution

The solution to the problem is based on the solutions from the subproblems. x = {26.2596136775, -27.9262803445}

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