x^2+38x-361=0

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Solution for x^2+38x-361=0 equation:


Simplifying
x2 + 38x + -361 = 0

Reorder the terms:
-361 + 38x + x2 = 0

Solving
-361 + 38x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '361' to each side of the equation.
-361 + 38x + 361 + x2 = 0 + 361

Reorder the terms:
-361 + 361 + 38x + x2 = 0 + 361

Combine like terms: -361 + 361 = 0
0 + 38x + x2 = 0 + 361
38x + x2 = 0 + 361

Combine like terms: 0 + 361 = 361
38x + x2 = 361

The x term is 38x.  Take half its coefficient (19).
Square it (361) and add it to both sides.

Add '361' to each side of the equation.
38x + 361 + x2 = 361 + 361

Reorder the terms:
361 + 38x + x2 = 361 + 361

Combine like terms: 361 + 361 = 722
361 + 38x + x2 = 722

Factor a perfect square on the left side:
(x + 19)(x + 19) = 722

Calculate the square root of the right side: 26.870057685

Break this problem into two subproblems by setting 
(x + 19) equal to 26.870057685 and -26.870057685.

Subproblem 1

x + 19 = 26.870057685 Simplifying x + 19 = 26.870057685 Reorder the terms: 19 + x = 26.870057685 Solving 19 + x = 26.870057685 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-19' to each side of the equation. 19 + -19 + x = 26.870057685 + -19 Combine like terms: 19 + -19 = 0 0 + x = 26.870057685 + -19 x = 26.870057685 + -19 Combine like terms: 26.870057685 + -19 = 7.870057685 x = 7.870057685 Simplifying x = 7.870057685

Subproblem 2

x + 19 = -26.870057685 Simplifying x + 19 = -26.870057685 Reorder the terms: 19 + x = -26.870057685 Solving 19 + x = -26.870057685 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-19' to each side of the equation. 19 + -19 + x = -26.870057685 + -19 Combine like terms: 19 + -19 = 0 0 + x = -26.870057685 + -19 x = -26.870057685 + -19 Combine like terms: -26.870057685 + -19 = -45.870057685 x = -45.870057685 Simplifying x = -45.870057685

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7.870057685, -45.870057685}

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