v^2+4v-3=0

Simple and best practice solution for v^2+4v-3=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+4v-3=0 equation:


Simplifying
v2 + 4v + -3 = 0

Reorder the terms:
-3 + 4v + v2 = 0

Solving
-3 + 4v + v2 = 0

Solving for variable 'v'.

Begin completing the square.

Move the constant term to the right:

Add '3' to each side of the equation.
-3 + 4v + 3 + v2 = 0 + 3

Reorder the terms:
-3 + 3 + 4v + v2 = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 4v + v2 = 0 + 3
4v + v2 = 0 + 3

Combine like terms: 0 + 3 = 3
4v + v2 = 3

The v term is 4v.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4v + 4 + v2 = 3 + 4

Reorder the terms:
4 + 4v + v2 = 3 + 4

Combine like terms: 3 + 4 = 7
4 + 4v + v2 = 7

Factor a perfect square on the left side:
(v + 2)(v + 2) = 7

Calculate the square root of the right side: 2.645751311

Break this problem into two subproblems by setting 
(v + 2) equal to 2.645751311 and -2.645751311.

Subproblem 1

v + 2 = 2.645751311 Simplifying v + 2 = 2.645751311 Reorder the terms: 2 + v = 2.645751311 Solving 2 + v = 2.645751311 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + v = 2.645751311 + -2 Combine like terms: 2 + -2 = 0 0 + v = 2.645751311 + -2 v = 2.645751311 + -2 Combine like terms: 2.645751311 + -2 = 0.645751311 v = 0.645751311 Simplifying v = 0.645751311

Subproblem 2

v + 2 = -2.645751311 Simplifying v + 2 = -2.645751311 Reorder the terms: 2 + v = -2.645751311 Solving 2 + v = -2.645751311 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + v = -2.645751311 + -2 Combine like terms: 2 + -2 = 0 0 + v = -2.645751311 + -2 v = -2.645751311 + -2 Combine like terms: -2.645751311 + -2 = -4.645751311 v = -4.645751311 Simplifying v = -4.645751311

Solution

The solution to the problem is based on the solutions from the subproblems. v = {0.645751311, -4.645751311}

See similar equations:

| 6+2r=8 | | -6y+12y-(-6)=-12 | | 0.5(x+300)=0.56x-300 | | 5(75x)=4x | | b-1625=875 | | 4(2d-3)+5=15 | | (x+9)(x-16)=0 | | -6(n-7)-5(-8n+5)=17 | | 34+x+112=78-7 | | -n-3n=-6-7n+4n | | 2-6x=74 | | 0.14y+0.08(y+8.000)=1740 | | 6x+5(3x-9)=186 | | -(5n+12)=18 | | 19=15w-3(3w-1) | | 0.75g-9=4[g+1] | | p(x)=x^3-3x^2+4x-12 | | 4(3n+6)-14n=96 | | 4(x-2)=7(x-2) | | 2+3x+4=6 | | 6-d=7 | | 2.50x=250 | | -7x+17-8x=-14x+25 | | 0.5x+3=0.75x-7.75 | | 160=-10x | | 8g-14-6g=-6 | | 500+900x=5000 | | 77000-z=39400 | | 75x=4x | | 3-7(h-2)+17=-1 | | 10(1+3x)+15x=-20 | | 5(3x+6)-30= |

Equations solver categories