v^2-14v-76=6

Simple and best practice solution for v^2-14v-76=6 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-76=6 equation:


Simplifying
v2 + -14v + -76 = 6

Reorder the terms:
-76 + -14v + v2 = 6

Solving
-76 + -14v + v2 = 6

Solving for variable 'v'.

Reorder the terms:
-76 + -6 + -14v + v2 = 6 + -6

Combine like terms: -76 + -6 = -82
-82 + -14v + v2 = 6 + -6

Combine like terms: 6 + -6 = 0
-82 + -14v + v2 = 0

Begin completing the square.

Move the constant term to the right:

Add '82' to each side of the equation.
-82 + -14v + 82 + v2 = 0 + 82

Reorder the terms:
-82 + 82 + -14v + v2 = 0 + 82

Combine like terms: -82 + 82 = 0
0 + -14v + v2 = 0 + 82
-14v + v2 = 0 + 82

Combine like terms: 0 + 82 = 82
-14v + v2 = 82

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 = 82 + 49

Reorder the terms:
49 + -14v + v2 = 82 + 49

Combine like terms: 82 + 49 = 131
49 + -14v + v2 = 131

Factor a perfect square on the left side:
(v + -7)(v + -7) = 131

Calculate the square root of the right side: 11.445523142

Break this problem into two subproblems by setting 
(v + -7) equal to 11.445523142 and -11.445523142.

Subproblem 1

v + -7 = 11.445523142 Simplifying v + -7 = 11.445523142 Reorder the terms: -7 + v = 11.445523142 Solving -7 + v = 11.445523142 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 = 11.445523142 + 7 Combine like terms: -7 + 7 = 0 0 + v = 11.445523142 + 7 v = 11.445523142 + 7 Combine like terms: 11.445523142 + 7 = 18.445523142 v = 18.445523142 Simplifying v = 18.445523142

Subproblem 2

v + -7 = -11.445523142 Simplifying v + -7 = -11.445523142 Reorder the terms: -7 + v = -11.445523142 Solving -7 + v = -11.445523142 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 = -11.445523142 + 7 Combine like terms: -7 + 7 = 0 0 + v = -11.445523142 + 7 v = -11.445523142 + 7 Combine like terms: -11.445523142 + 7 = -4.445523142 v = -4.445523142 Simplifying v = -4.445523142

Solution

The solution to the problem is based on the solutions from the subproblems. v = {18.445523142, -4.445523142}

See similar equations:

| p^2-8=43 | | X^2+x+-6=0 | | 5-4(x+2)=17 | | xy=3x+7y-21 | | ln(x)=3.56 | | 15-(8-x)=4(2x-3)+2 | | xy=3x+7y | | f(x)=4cosx+6x-5 | | 2x+105=175-3x | | 5m+4=35 | | 6y+7y-20=0 | | 4x-4=3(2x-2) | | 4(a+3)-3=5 | | S=900(5-2) | | 2x-mp=7 | | 2.2a-4=3.6 | | 9m+2.2a-4=3.6 | | 1+4x=14+x | | 13m+5n-6m+8n= | | 5+2(x-4)=2(x-1) | | 3x^2+18-30=0 | | 5+2(x-4)=2(x-7) | | 2y+6+3y=7-y | | 52=12-8a | | 52=12+8a | | z+7=18 | | 5(2b-6)-b=3 | | 5x+5x=3x+33 | | 2.5z+2y+1=6 | | (2x+5)(2x+5)+(2x+5)=0 | | 4x+32=4(x+7) | | 8x-4x-6=3 |

Equations solver categories