2x^2+43x-2730=0

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Solution for 2x^2+43x-2730=0 equation:


Simplifying
2x2 + 43x + -2730 = 0

Reorder the terms:
-2730 + 43x + 2x2 = 0

Solving
-2730 + 43x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
-1365 + 21.5x + x2 = 0

Move the constant term to the right:

Add '1365' to each side of the equation.
-1365 + 21.5x + 1365 + x2 = 0 + 1365

Reorder the terms:
-1365 + 1365 + 21.5x + x2 = 0 + 1365

Combine like terms: -1365 + 1365 = 0
0 + 21.5x + x2 = 0 + 1365
21.5x + x2 = 0 + 1365

Combine like terms: 0 + 1365 = 1365
21.5x + x2 = 1365

The x term is 21.5x.  Take half its coefficient (10.75).
Square it (115.5625) and add it to both sides.

Add '115.5625' to each side of the equation.
21.5x + 115.5625 + x2 = 1365 + 115.5625

Reorder the terms:
115.5625 + 21.5x + x2 = 1365 + 115.5625

Combine like terms: 1365 + 115.5625 = 1480.5625
115.5625 + 21.5x + x2 = 1480.5625

Factor a perfect square on the left side:
(x + 10.75)(x + 10.75) = 1480.5625

Calculate the square root of the right side: 38.478078174

Break this problem into two subproblems by setting 
(x + 10.75) equal to 38.478078174 and -38.478078174.

Subproblem 1

x + 10.75 = 38.478078174 Simplifying x + 10.75 = 38.478078174 Reorder the terms: 10.75 + x = 38.478078174 Solving 10.75 + x = 38.478078174 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10.75' to each side of the equation. 10.75 + -10.75 + x = 38.478078174 + -10.75 Combine like terms: 10.75 + -10.75 = 0.00 0.00 + x = 38.478078174 + -10.75 x = 38.478078174 + -10.75 Combine like terms: 38.478078174 + -10.75 = 27.728078174 x = 27.728078174 Simplifying x = 27.728078174

Subproblem 2

x + 10.75 = -38.478078174 Simplifying x + 10.75 = -38.478078174 Reorder the terms: 10.75 + x = -38.478078174 Solving 10.75 + x = -38.478078174 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10.75' to each side of the equation. 10.75 + -10.75 + x = -38.478078174 + -10.75 Combine like terms: 10.75 + -10.75 = 0.00 0.00 + x = -38.478078174 + -10.75 x = -38.478078174 + -10.75 Combine like terms: -38.478078174 + -10.75 = -49.228078174 x = -49.228078174 Simplifying x = -49.228078174

Solution

The solution to the problem is based on the solutions from the subproblems. x = {27.728078174, -49.228078174}

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