5v^2-11v-1=0

Simple and best practice solution for 5v^2-11v-1=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 5v^2-11v-1=0 equation:


Simplifying
5v2 + -11v + -1 = 0

Reorder the terms:
-1 + -11v + 5v2 = 0

Solving
-1 + -11v + 5v2 = 0

Solving for variable 'v'.

Begin completing the square.  Divide all terms by
5 the coefficient of the squared term: 

Divide each side by '5'.
-0.2 + -2.2v + v2 = 0

Move the constant term to the right:

Add '0.2' to each side of the equation.
-0.2 + -2.2v + 0.2 + v2 = 0 + 0.2

Reorder the terms:
-0.2 + 0.2 + -2.2v + v2 = 0 + 0.2

Combine like terms: -0.2 + 0.2 = 0.0
0.0 + -2.2v + v2 = 0 + 0.2
-2.2v + v2 = 0 + 0.2

Combine like terms: 0 + 0.2 = 0.2
-2.2v + v2 = 0.2

The v term is -2.2v.  Take half its coefficient (-1.1).
Square it (1.21) and add it to both sides.

Add '1.21' to each side of the equation.
-2.2v + 1.21 + v2 = 0.2 + 1.21

Reorder the terms:
1.21 + -2.2v + v2 = 0.2 + 1.21

Combine like terms: 0.2 + 1.21 = 1.41
1.21 + -2.2v + v2 = 1.41

Factor a perfect square on the left side:
(v + -1.1)(v + -1.1) = 1.41

Calculate the square root of the right side: 1.187434209

Break this problem into two subproblems by setting 
(v + -1.1) equal to 1.187434209 and -1.187434209.

Subproblem 1

v + -1.1 = 1.187434209 Simplifying v + -1.1 = 1.187434209 Reorder the terms: -1.1 + v = 1.187434209 Solving -1.1 + v = 1.187434209 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '1.1' to each side of the equation. -1.1 + 1.1 + v = 1.187434209 + 1.1 Combine like terms: -1.1 + 1.1 = 0.0 0.0 + v = 1.187434209 + 1.1 v = 1.187434209 + 1.1 Combine like terms: 1.187434209 + 1.1 = 2.287434209 v = 2.287434209 Simplifying v = 2.287434209

Subproblem 2

v + -1.1 = -1.187434209 Simplifying v + -1.1 = -1.187434209 Reorder the terms: -1.1 + v = -1.187434209 Solving -1.1 + v = -1.187434209 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '1.1' to each side of the equation. -1.1 + 1.1 + v = -1.187434209 + 1.1 Combine like terms: -1.1 + 1.1 = 0.0 0.0 + v = -1.187434209 + 1.1 v = -1.187434209 + 1.1 Combine like terms: -1.187434209 + 1.1 = -0.087434209 v = -0.087434209 Simplifying v = -0.087434209

Solution

The solution to the problem is based on the solutions from the subproblems. v = {2.287434209, -0.087434209}

See similar equations:

| X-2/3=4(2/5) | | 6k^2-21k= | | 30e^(t/30)(−ln(2)) | | x-1/3-4=x-9/4 | | Y=4(-3)+4 | | 10+10x=10+10x | | X-2/3=42/5 | | -8x-7=-9x+1 | | 10x+5y-2= | | 0=9x+39x+12 | | 4x+4=-4x-20 | | (1+6i)(1+6i)=0 | | 10/56 | | -[6z-(17z+4)]=4+(10z+1) | | 7t-12=-2+5t | | 2x^2+3=131 | | 8m^2-10=118 | | 4p^2-15p-25= | | 2[t-(2t+11)+10]=2(t+1) | | 3x^2-2x+1=-3x^2+9x+11 | | 0.6k+0.08k=44+8 | | -2p-4(3-3p)=6(p-4)-8 | | 36-4x=5x-9 | | -.333333x+1.33333y=-2.33333 | | x-3/5=5/12 | | 6y-7=-11+4y | | 6k^2+13k+2= | | 7÷7/4 | | -3+12=4 | | -m^2-7m+6=0 | | M^2+7m-6=0 | | 6p^2+17p+12= |

Equations solver categories