v^2-26v=19

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Solution for v^2-26v=19 equation:


Simplifying
v2 + -26v = 19

Reorder the terms:
-26v + v2 = 19

Solving
-26v + v2 = 19

Solving for variable 'v'.

Reorder the terms:
-19 + -26v + v2 = 19 + -19

Combine like terms: 19 + -19 = 0
-19 + -26v + v2 = 0

Begin completing the square.

Move the constant term to the right:

Add '19' to each side of the equation.
-19 + -26v + 19 + v2 = 0 + 19

Reorder the terms:
-19 + 19 + -26v + v2 = 0 + 19

Combine like terms: -19 + 19 = 0
0 + -26v + v2 = 0 + 19
-26v + v2 = 0 + 19

Combine like terms: 0 + 19 = 19
-26v + v2 = 19

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

Add '169' to each side of the equation.
-26v + 169 + v2 = 19 + 169

Reorder the terms:
169 + -26v + v2 = 19 + 169

Combine like terms: 19 + 169 = 188
169 + -26v + v2 = 188

Factor a perfect square on the left side:
(v + -13)(v + -13) = 188

Calculate the square root of the right side: 13.711309201

Break this problem into two subproblems by setting 
(v + -13) equal to 13.711309201 and -13.711309201.

Subproblem 1

v + -13 = 13.711309201 Simplifying v + -13 = 13.711309201 Reorder the terms: -13 + v = 13.711309201 Solving -13 + v = 13.711309201 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + v = 13.711309201 + 13 Combine like terms: -13 + 13 = 0 0 + v = 13.711309201 + 13 v = 13.711309201 + 13 Combine like terms: 13.711309201 + 13 = 26.711309201 v = 26.711309201 Simplifying v = 26.711309201

Subproblem 2

v + -13 = -13.711309201 Simplifying v + -13 = -13.711309201 Reorder the terms: -13 + v = -13.711309201 Solving -13 + v = -13.711309201 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '13' to each side of the equation. -13 + 13 + v = -13.711309201 + 13 Combine like terms: -13 + 13 = 0 0 + v = -13.711309201 + 13 v = -13.711309201 + 13 Combine like terms: -13.711309201 + 13 = -0.711309201 v = -0.711309201 Simplifying v = -0.711309201

Solution

The solution to the problem is based on the solutions from the subproblems. v = {26.711309201, -0.711309201}

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