x^2+35.5x-357=0

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Solution for x^2+35.5x-357=0 equation:


Simplifying
x2 + 35.5x + -357 = 0

Reorder the terms:
-357 + 35.5x + x2 = 0

Solving
-357 + 35.5x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '357' to each side of the equation.
-357 + 35.5x + 357 + x2 = 0 + 357

Reorder the terms:
-357 + 357 + 35.5x + x2 = 0 + 357

Combine like terms: -357 + 357 = 0
0 + 35.5x + x2 = 0 + 357
35.5x + x2 = 0 + 357

Combine like terms: 0 + 357 = 357
35.5x + x2 = 357

The x term is 35.5x.  Take half its coefficient (17.75).
Square it (315.0625) and add it to both sides.

Add '315.0625' to each side of the equation.
35.5x + 315.0625 + x2 = 357 + 315.0625

Reorder the terms:
315.0625 + 35.5x + x2 = 357 + 315.0625

Combine like terms: 357 + 315.0625 = 672.0625
315.0625 + 35.5x + x2 = 672.0625

Factor a perfect square on the left side:
(x + 17.75)(x + 17.75) = 672.0625

Calculate the square root of the right side: 25.924168261

Break this problem into two subproblems by setting 
(x + 17.75) equal to 25.924168261 and -25.924168261.

Subproblem 1

x + 17.75 = 25.924168261 Simplifying x + 17.75 = 25.924168261 Reorder the terms: 17.75 + x = 25.924168261 Solving 17.75 + x = 25.924168261 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-17.75' to each side of the equation. 17.75 + -17.75 + x = 25.924168261 + -17.75 Combine like terms: 17.75 + -17.75 = 0.00 0.00 + x = 25.924168261 + -17.75 x = 25.924168261 + -17.75 Combine like terms: 25.924168261 + -17.75 = 8.174168261 x = 8.174168261 Simplifying x = 8.174168261

Subproblem 2

x + 17.75 = -25.924168261 Simplifying x + 17.75 = -25.924168261 Reorder the terms: 17.75 + x = -25.924168261 Solving 17.75 + x = -25.924168261 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-17.75' to each side of the equation. 17.75 + -17.75 + x = -25.924168261 + -17.75 Combine like terms: 17.75 + -17.75 = 0.00 0.00 + x = -25.924168261 + -17.75 x = -25.924168261 + -17.75 Combine like terms: -25.924168261 + -17.75 = -43.674168261 x = -43.674168261 Simplifying x = -43.674168261

Solution

The solution to the problem is based on the solutions from the subproblems. x = {8.174168261, -43.674168261}

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