5v^2+11v-2=0

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


Simplifying
5v2 + 11v + -2 = 0

Reorder the terms:
-2 + 11v + 5v2 = 0

Solving
-2 + 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'.
-0.4 + 2.2v + v2 = 0

Move the constant term to the right:

Add '0.4' to each side of the equation.
-0.4 + 2.2v + 0.4 + v2 = 0 + 0.4

Reorder the terms:
-0.4 + 0.4 + 2.2v + v2 = 0 + 0.4

Combine like terms: -0.4 + 0.4 = 0.0
0.0 + 2.2v + v2 = 0 + 0.4
2.2v + v2 = 0 + 0.4

Combine like terms: 0 + 0.4 = 0.4
2.2v + v2 = 0.4

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 = 0.4 + 1.21

Reorder the terms:
1.21 + 2.2v + v2 = 0.4 + 1.21

Combine like terms: 0.4 + 1.21 = 1.61
1.21 + 2.2v + v2 = 1.61

Factor a perfect square on the left side:
(v + 1.1)(v + 1.1) = 1.61

Calculate the square root of the right side: 1.268857754

Break this problem into two subproblems by setting 
(v + 1.1) equal to 1.268857754 and -1.268857754.

Subproblem 1

v + 1.1 = 1.268857754 Simplifying v + 1.1 = 1.268857754 Reorder the terms: 1.1 + v = 1.268857754 Solving 1.1 + v = 1.268857754 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 = 1.268857754 + -1.1 Combine like terms: 1.1 + -1.1 = 0.0 0.0 + v = 1.268857754 + -1.1 v = 1.268857754 + -1.1 Combine like terms: 1.268857754 + -1.1 = 0.168857754 v = 0.168857754 Simplifying v = 0.168857754

Subproblem 2

v + 1.1 = -1.268857754 Simplifying v + 1.1 = -1.268857754 Reorder the terms: 1.1 + v = -1.268857754 Solving 1.1 + v = -1.268857754 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 = -1.268857754 + -1.1 Combine like terms: 1.1 + -1.1 = 0.0 0.0 + v = -1.268857754 + -1.1 v = -1.268857754 + -1.1 Combine like terms: -1.268857754 + -1.1 = -2.368857754 v = -2.368857754 Simplifying v = -2.368857754

Solution

The solution to the problem is based on the solutions from the subproblems. v = {0.168857754, -2.368857754}

See similar equations:

| 5(1.2k+6)=7.1k+64.4 | | 5+8*n=50+0.5n | | 5r^2-2r+5=0 | | -7x-2(-x-9)=-32 | | 8(2-x)+2=12-2x | | 15y=7.8 | | 3x^2+24x+3y^2-60y-15=0 | | y=2.82x+3.25 | | x=9x+58 | | 0=-16t^2+92t+160 | | 2.5-(8.2)=26.7 | | x/4=(3x)/5-21/10 | | Five(3X+5)=4X-8 | | -3(10x-3)+10(3x-3)=x-7 | | (2x+8)*x=42 | | (3x)/2-17/3=(2x)/3-3/2 | | 3(u-2)-4=-4(-5u+1)-3u | | 5x^3=25x | | 12x-8-11x=3 | | -7x+4=3x+5 | | (x^2)-2x=0 | | 4v+31=-3(v-1) | | (h+4)*h=16 | | 14+12x=37-11x | | 2.2t-3=31.2 | | -6x-9=-5x+5 | | -2(6n-5)=26 | | -33-8x=51-12x | | 9-(3x-12)=2(6x-3)-9 | | 8(4.8-c)=22.4 | | abs(3-2x)=10 | | 4x+-1=2(3x+3) |

Equations solver categories