2x^2+361x-64=0

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Solution for 2x^2+361x-64=0 equation:


Simplifying
2x2 + 361x + -64 = 0

Reorder the terms:
-64 + 361x + 2x2 = 0

Solving
-64 + 361x + 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'.
-32 + 180.5x + x2 = 0

Move the constant term to the right:

Add '32' to each side of the equation.
-32 + 180.5x + 32 + x2 = 0 + 32

Reorder the terms:
-32 + 32 + 180.5x + x2 = 0 + 32

Combine like terms: -32 + 32 = 0
0 + 180.5x + x2 = 0 + 32
180.5x + x2 = 0 + 32

Combine like terms: 0 + 32 = 32
180.5x + x2 = 32

The x term is 180.5x.  Take half its coefficient (90.25).
Square it (8145.0625) and add it to both sides.

Add '8145.0625' to each side of the equation.
180.5x + 8145.0625 + x2 = 32 + 8145.0625

Reorder the terms:
8145.0625 + 180.5x + x2 = 32 + 8145.0625

Combine like terms: 32 + 8145.0625 = 8177.0625
8145.0625 + 180.5x + x2 = 8177.0625

Factor a perfect square on the left side:
(x + 90.25)(x + 90.25) = 8177.0625

Calculate the square root of the right side: 90.427111532

Break this problem into two subproblems by setting 
(x + 90.25) equal to 90.427111532 and -90.427111532.

Subproblem 1

x + 90.25 = 90.427111532 Simplifying x + 90.25 = 90.427111532 Reorder the terms: 90.25 + x = 90.427111532 Solving 90.25 + x = 90.427111532 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-90.25' to each side of the equation. 90.25 + -90.25 + x = 90.427111532 + -90.25 Combine like terms: 90.25 + -90.25 = 0.00 0.00 + x = 90.427111532 + -90.25 x = 90.427111532 + -90.25 Combine like terms: 90.427111532 + -90.25 = 0.177111532 x = 0.177111532 Simplifying x = 0.177111532

Subproblem 2

x + 90.25 = -90.427111532 Simplifying x + 90.25 = -90.427111532 Reorder the terms: 90.25 + x = -90.427111532 Solving 90.25 + x = -90.427111532 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-90.25' to each side of the equation. 90.25 + -90.25 + x = -90.427111532 + -90.25 Combine like terms: 90.25 + -90.25 = 0.00 0.00 + x = -90.427111532 + -90.25 x = -90.427111532 + -90.25 Combine like terms: -90.427111532 + -90.25 = -180.677111532 x = -180.677111532 Simplifying x = -180.677111532

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.177111532, -180.677111532}

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