4x^2+325x-2=43

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Solution for 4x^2+325x-2=43 equation:


Simplifying
4x2 + 325x + -2 = 43

Reorder the terms:
-2 + 325x + 4x2 = 43

Solving
-2 + 325x + 4x2 = 43

Solving for variable 'x'.

Reorder the terms:
-2 + -43 + 325x + 4x2 = 43 + -43

Combine like terms: -2 + -43 = -45
-45 + 325x + 4x2 = 43 + -43

Combine like terms: 43 + -43 = 0
-45 + 325x + 4x2 = 0

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

Divide each side by '4'.
-11.25 + 81.25x + x2 = 0

Move the constant term to the right:

Add '11.25' to each side of the equation.
-11.25 + 81.25x + 11.25 + x2 = 0 + 11.25

Reorder the terms:
-11.25 + 11.25 + 81.25x + x2 = 0 + 11.25

Combine like terms: -11.25 + 11.25 = 0.00
0.00 + 81.25x + x2 = 0 + 11.25
81.25x + x2 = 0 + 11.25

Combine like terms: 0 + 11.25 = 11.25
81.25x + x2 = 11.25

The x term is 81.25x.  Take half its coefficient (40.625).
Square it (1650.390625) and add it to both sides.

Add '1650.390625' to each side of the equation.
81.25x + 1650.390625 + x2 = 11.25 + 1650.390625

Reorder the terms:
1650.390625 + 81.25x + x2 = 11.25 + 1650.390625

Combine like terms: 11.25 + 1650.390625 = 1661.640625
1650.390625 + 81.25x + x2 = 1661.640625

Factor a perfect square on the left side:
(x + 40.625)(x + 40.625) = 1661.640625

Calculate the square root of the right side: 40.763226381

Break this problem into two subproblems by setting 
(x + 40.625) equal to 40.763226381 and -40.763226381.

Subproblem 1

x + 40.625 = 40.763226381 Simplifying x + 40.625 = 40.763226381 Reorder the terms: 40.625 + x = 40.763226381 Solving 40.625 + x = 40.763226381 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-40.625' to each side of the equation. 40.625 + -40.625 + x = 40.763226381 + -40.625 Combine like terms: 40.625 + -40.625 = 0.000 0.000 + x = 40.763226381 + -40.625 x = 40.763226381 + -40.625 Combine like terms: 40.763226381 + -40.625 = 0.138226381 x = 0.138226381 Simplifying x = 0.138226381

Subproblem 2

x + 40.625 = -40.763226381 Simplifying x + 40.625 = -40.763226381 Reorder the terms: 40.625 + x = -40.763226381 Solving 40.625 + x = -40.763226381 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-40.625' to each side of the equation. 40.625 + -40.625 + x = -40.763226381 + -40.625 Combine like terms: 40.625 + -40.625 = 0.000 0.000 + x = -40.763226381 + -40.625 x = -40.763226381 + -40.625 Combine like terms: -40.763226381 + -40.625 = -81.388226381 x = -81.388226381 Simplifying x = -81.388226381

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.138226381, -81.388226381}

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