u^2-26u-35=0

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Solution for u^2-26u-35=0 equation:


Simplifying
u2 + -26u + -35 = 0

Reorder the terms:
-35 + -26u + u2 = 0

Solving
-35 + -26u + u2 = 0

Solving for variable 'u'.

Begin completing the square.

Move the constant term to the right:

Add '35' to each side of the equation.
-35 + -26u + 35 + u2 = 0 + 35

Reorder the terms:
-35 + 35 + -26u + u2 = 0 + 35

Combine like terms: -35 + 35 = 0
0 + -26u + u2 = 0 + 35
-26u + u2 = 0 + 35

Combine like terms: 0 + 35 = 35
-26u + u2 = 35

The u term is -26u.  Take half its coefficient (-13).
Square it (169) and add it to both sides.

Add '169' to each side of the equation.
-26u + 169 + u2 = 35 + 169

Reorder the terms:
169 + -26u + u2 = 35 + 169

Combine like terms: 35 + 169 = 204
169 + -26u + u2 = 204

Factor a perfect square on the left side:
(u + -13)(u + -13) = 204

Calculate the square root of the right side: 14.282856857

Break this problem into two subproblems by setting 
(u + -13) equal to 14.282856857 and -14.282856857.

Subproblem 1

u + -13 = 14.282856857 Simplifying u + -13 = 14.282856857 Reorder the terms: -13 + u = 14.282856857 Solving -13 + u = 14.282856857 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + u = 14.282856857 + 13 Combine like terms: -13 + 13 = 0 0 + u = 14.282856857 + 13 u = 14.282856857 + 13 Combine like terms: 14.282856857 + 13 = 27.282856857 u = 27.282856857 Simplifying u = 27.282856857

Subproblem 2

u + -13 = -14.282856857 Simplifying u + -13 = -14.282856857 Reorder the terms: -13 + u = -14.282856857 Solving -13 + u = -14.282856857 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + u = -14.282856857 + 13 Combine like terms: -13 + 13 = 0 0 + u = -14.282856857 + 13 u = -14.282856857 + 13 Combine like terms: -14.282856857 + 13 = -1.282856857 u = -1.282856857 Simplifying u = -1.282856857

Solution

The solution to the problem is based on the solutions from the subproblems. u = {27.282856857, -1.282856857}

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