v^2+14v=19

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Solution for v^2+14v=19 equation:


Simplifying
v2 + 14v = 19

Reorder the terms:
14v + v2 = 19

Solving
14v + v2 = 19

Solving for variable 'v'.

Reorder the terms:
-19 + 14v + v2 = 19 + -19

Combine like terms: 19 + -19 = 0
-19 + 14v + v2 = 0

Begin completing the square.

Move the constant term to the right:

Add '19' to each side of the equation.
-19 + 14v + 19 + v2 = 0 + 19

Reorder the terms:
-19 + 19 + 14v + v2 = 0 + 19

Combine like terms: -19 + 19 = 0
0 + 14v + v2 = 0 + 19
14v + v2 = 0 + 19

Combine like terms: 0 + 19 = 19
14v + v2 = 19

The v term is 14v.  Take half its coefficient (7).
Square it (49) and add it to both sides.

Add '49' to each side of the equation.
14v + 49 + v2 = 19 + 49

Reorder the terms:
49 + 14v + v2 = 19 + 49

Combine like terms: 19 + 49 = 68
49 + 14v + v2 = 68

Factor a perfect square on the left side:
(v + 7)(v + 7) = 68

Calculate the square root of the right side: 8.246211251

Break this problem into two subproblems by setting 
(v + 7) equal to 8.246211251 and -8.246211251.

Subproblem 1

v + 7 = 8.246211251 Simplifying v + 7 = 8.246211251 Reorder the terms: 7 + v = 8.246211251 Solving 7 + v = 8.246211251 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + v = 8.246211251 + -7 Combine like terms: 7 + -7 = 0 0 + v = 8.246211251 + -7 v = 8.246211251 + -7 Combine like terms: 8.246211251 + -7 = 1.246211251 v = 1.246211251 Simplifying v = 1.246211251

Subproblem 2

v + 7 = -8.246211251 Simplifying v + 7 = -8.246211251 Reorder the terms: 7 + v = -8.246211251 Solving 7 + v = -8.246211251 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + v = -8.246211251 + -7 Combine like terms: 7 + -7 = 0 0 + v = -8.246211251 + -7 v = -8.246211251 + -7 Combine like terms: -8.246211251 + -7 = -15.246211251 v = -15.246211251 Simplifying v = -15.246211251

Solution

The solution to the problem is based on the solutions from the subproblems. v = {1.246211251, -15.246211251}

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