x^2-34x=280

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Solution for x^2-34x=280 equation:


Simplifying
x2 + -34x = 280

Reorder the terms:
-34x + x2 = 280

Solving
-34x + x2 = 280

Solving for variable 'x'.

Reorder the terms:
-280 + -34x + x2 = 280 + -280

Combine like terms: 280 + -280 = 0
-280 + -34x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '280' to each side of the equation.
-280 + -34x + 280 + x2 = 0 + 280

Reorder the terms:
-280 + 280 + -34x + x2 = 0 + 280

Combine like terms: -280 + 280 = 0
0 + -34x + x2 = 0 + 280
-34x + x2 = 0 + 280

Combine like terms: 0 + 280 = 280
-34x + x2 = 280

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 = 280 + 289

Reorder the terms:
289 + -34x + x2 = 280 + 289

Combine like terms: 280 + 289 = 569
289 + -34x + x2 = 569

Factor a perfect square on the left side:
(x + -17)(x + -17) = 569

Calculate the square root of the right side: 23.853720884

Break this problem into two subproblems by setting 
(x + -17) equal to 23.853720884 and -23.853720884.

Subproblem 1

x + -17 = 23.853720884 Simplifying x + -17 = 23.853720884 Reorder the terms: -17 + x = 23.853720884 Solving -17 + x = 23.853720884 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 = 23.853720884 + 17 Combine like terms: -17 + 17 = 0 0 + x = 23.853720884 + 17 x = 23.853720884 + 17 Combine like terms: 23.853720884 + 17 = 40.853720884 x = 40.853720884 Simplifying x = 40.853720884

Subproblem 2

x + -17 = -23.853720884 Simplifying x + -17 = -23.853720884 Reorder the terms: -17 + x = -23.853720884 Solving -17 + x = -23.853720884 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 = -23.853720884 + 17 Combine like terms: -17 + 17 = 0 0 + x = -23.853720884 + 17 x = -23.853720884 + 17 Combine like terms: -23.853720884 + 17 = -6.853720884 x = -6.853720884 Simplifying x = -6.853720884

Solution

The solution to the problem is based on the solutions from the subproblems. x = {40.853720884, -6.853720884}

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