u^2+13u+10=

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Solution for u^2+13u+10= equation:


Simplifying
u2 + 13u + 10 = 0

Reorder the terms:
10 + 13u + u2 = 0

Solving
10 + 13u + u2 = 0

Solving for variable 'u'.

Begin completing the square.

Move the constant term to the right:

Add '-10' to each side of the equation.
10 + 13u + -10 + u2 = 0 + -10

Reorder the terms:
10 + -10 + 13u + u2 = 0 + -10

Combine like terms: 10 + -10 = 0
0 + 13u + u2 = 0 + -10
13u + u2 = 0 + -10

Combine like terms: 0 + -10 = -10
13u + u2 = -10

The u term is 13u.  Take half its coefficient (6.5).
Square it (42.25) and add it to both sides.

Add '42.25' to each side of the equation.
13u + 42.25 + u2 = -10 + 42.25

Reorder the terms:
42.25 + 13u + u2 = -10 + 42.25

Combine like terms: -10 + 42.25 = 32.25
42.25 + 13u + u2 = 32.25

Factor a perfect square on the left side:
(u + 6.5)(u + 6.5) = 32.25

Calculate the square root of the right side: 5.678908346

Break this problem into two subproblems by setting 
(u + 6.5) equal to 5.678908346 and -5.678908346.

Subproblem 1

u + 6.5 = 5.678908346 Simplifying u + 6.5 = 5.678908346 Reorder the terms: 6.5 + u = 5.678908346 Solving 6.5 + u = 5.678908346 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-6.5' to each side of the equation. 6.5 + -6.5 + u = 5.678908346 + -6.5 Combine like terms: 6.5 + -6.5 = 0.0 0.0 + u = 5.678908346 + -6.5 u = 5.678908346 + -6.5 Combine like terms: 5.678908346 + -6.5 = -0.821091654 u = -0.821091654 Simplifying u = -0.821091654

Subproblem 2

u + 6.5 = -5.678908346 Simplifying u + 6.5 = -5.678908346 Reorder the terms: 6.5 + u = -5.678908346 Solving 6.5 + u = -5.678908346 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-6.5' to each side of the equation. 6.5 + -6.5 + u = -5.678908346 + -6.5 Combine like terms: 6.5 + -6.5 = 0.0 0.0 + u = -5.678908346 + -6.5 u = -5.678908346 + -6.5 Combine like terms: -5.678908346 + -6.5 = -12.178908346 u = -12.178908346 Simplifying u = -12.178908346

Solution

The solution to the problem is based on the solutions from the subproblems. u = {-0.821091654, -12.178908346}

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