x^2+34x-55=0

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Solution for x^2+34x-55=0 equation:


Simplifying
x2 + 34x + -55 = 0

Reorder the terms:
-55 + 34x + x2 = 0

Solving
-55 + 34x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '55' to each side of the equation.
-55 + 34x + 55 + x2 = 0 + 55

Reorder the terms:
-55 + 55 + 34x + x2 = 0 + 55

Combine like terms: -55 + 55 = 0
0 + 34x + x2 = 0 + 55
34x + x2 = 0 + 55

Combine like terms: 0 + 55 = 55
34x + x2 = 55

The x term is 34x.  Take half its coefficient (17).
Square it (289) and add it to both sides.

Add '289' to each side of the equation.
34x + 289 + x2 = 55 + 289

Reorder the terms:
289 + 34x + x2 = 55 + 289

Combine like terms: 55 + 289 = 344
289 + 34x + x2 = 344

Factor a perfect square on the left side:
(x + 17)(x + 17) = 344

Calculate the square root of the right side: 18.547236991

Break this problem into two subproblems by setting 
(x + 17) equal to 18.547236991 and -18.547236991.

Subproblem 1

x + 17 = 18.547236991 Simplifying x + 17 = 18.547236991 Reorder the terms: 17 + x = 18.547236991 Solving 17 + x = 18.547236991 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-17' to each side of the equation. 17 + -17 + x = 18.547236991 + -17 Combine like terms: 17 + -17 = 0 0 + x = 18.547236991 + -17 x = 18.547236991 + -17 Combine like terms: 18.547236991 + -17 = 1.547236991 x = 1.547236991 Simplifying x = 1.547236991

Subproblem 2

x + 17 = -18.547236991 Simplifying x + 17 = -18.547236991 Reorder the terms: 17 + x = -18.547236991 Solving 17 + x = -18.547236991 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-17' to each side of the equation. 17 + -17 + x = -18.547236991 + -17 Combine like terms: 17 + -17 = 0 0 + x = -18.547236991 + -17 x = -18.547236991 + -17 Combine like terms: -18.547236991 + -17 = -35.547236991 x = -35.547236991 Simplifying x = -35.547236991

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.547236991, -35.547236991}

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