v^2+14v-39=0

Simple and best practice solution for v^2+14v-39=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for v^2+14v-39=0 equation:


Simplifying
v2 + 14v + -39 = 0

Reorder the terms:
-39 + 14v + v2 = 0

Solving
-39 + 14v + v2 = 0

Solving for variable 'v'.

Begin completing the square.

Move the constant term to the right:

Add '39' to each side of the equation.
-39 + 14v + 39 + v2 = 0 + 39

Reorder the terms:
-39 + 39 + 14v + v2 = 0 + 39

Combine like terms: -39 + 39 = 0
0 + 14v + v2 = 0 + 39
14v + v2 = 0 + 39

Combine like terms: 0 + 39 = 39
14v + v2 = 39

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 = 39 + 49

Reorder the terms:
49 + 14v + v2 = 39 + 49

Combine like terms: 39 + 49 = 88
49 + 14v + v2 = 88

Factor a perfect square on the left side:
(v + 7)(v + 7) = 88

Calculate the square root of the right side: 9.38083152

Break this problem into two subproblems by setting 
(v + 7) equal to 9.38083152 and -9.38083152.

Subproblem 1

v + 7 = 9.38083152 Simplifying v + 7 = 9.38083152 Reorder the terms: 7 + v = 9.38083152 Solving 7 + v = 9.38083152 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 = 9.38083152 + -7 Combine like terms: 7 + -7 = 0 0 + v = 9.38083152 + -7 v = 9.38083152 + -7 Combine like terms: 9.38083152 + -7 = 2.38083152 v = 2.38083152 Simplifying v = 2.38083152

Subproblem 2

v + 7 = -9.38083152 Simplifying v + 7 = -9.38083152 Reorder the terms: 7 + v = -9.38083152 Solving 7 + v = -9.38083152 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 = -9.38083152 + -7 Combine like terms: 7 + -7 = 0 0 + v = -9.38083152 + -7 v = -9.38083152 + -7 Combine like terms: -9.38083152 + -7 = -16.38083152 v = -16.38083152 Simplifying v = -16.38083152

Solution

The solution to the problem is based on the solutions from the subproblems. v = {2.38083152, -16.38083152}

See similar equations:

| 3(2-w)=-5-2w | | m^2-10m-24=0 | | f(2)=9x-11 | | 3x+29.95=38.95 | | 7x+11y=228 | | f(x)=9x-11 | | v=3.14(.25)(7) | | -9(81)-9y=81 | | 9x-18y=45 | | -9(-9)-9y=81 | | 7(49)+7y=49 | | 3(x-4)=4x+3 | | (7x-2)(5x+5)= | | 7(7)+7y=49 | | x^2+20x-9=0 | | X^4+9x^2-49=0 | | 20/100=x/64 | | 2*151+6-151=157 | | 3x-15=6-4x | | 4x+20+6x+10=180 | | 2x+6-x=157 | | 2(x-10)=32 | | 3n=-3(-8-7) | | x+.56=18 | | 5w-6=34+26w | | X=-7y+12 | | 3(24-6x)=-36 | | 4x^2-4xy+2y^2-30=0 | | 3x-10+6x+100=180 | | 2d+6=-21-7d | | y^3-3y=9 | | 2(x-7)=10x+8 |

Equations solver categories