2v^2-13=-3v

Simple and best practice solution for 2v^2-13=-3v 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 2v^2-13=-3v equation:


Simplifying
2v2 + -13 = -3v

Reorder the terms:
-13 + 2v2 = -3v

Solving
-13 + 2v2 = -3v

Solving for variable 'v'.

Reorder the terms:
-13 + 3v + 2v2 = -3v + 3v

Combine like terms: -3v + 3v = 0
-13 + 3v + 2v2 = 0

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

Divide each side by '2'.
-6.5 + 1.5v + v2 = 0

Move the constant term to the right:

Add '6.5' to each side of the equation.
-6.5 + 1.5v + 6.5 + v2 = 0 + 6.5

Reorder the terms:
-6.5 + 6.5 + 1.5v + v2 = 0 + 6.5

Combine like terms: -6.5 + 6.5 = 0.0
0.0 + 1.5v + v2 = 0 + 6.5
1.5v + v2 = 0 + 6.5

Combine like terms: 0 + 6.5 = 6.5
1.5v + v2 = 6.5

The v term is 1.5v.  Take half its coefficient (0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
1.5v + 0.5625 + v2 = 6.5 + 0.5625

Reorder the terms:
0.5625 + 1.5v + v2 = 6.5 + 0.5625

Combine like terms: 6.5 + 0.5625 = 7.0625
0.5625 + 1.5v + v2 = 7.0625

Factor a perfect square on the left side:
(v + 0.75)(v + 0.75) = 7.0625

Calculate the square root of the right side: 2.657536453

Break this problem into two subproblems by setting 
(v + 0.75) equal to 2.657536453 and -2.657536453.

Subproblem 1

v + 0.75 = 2.657536453 Simplifying v + 0.75 = 2.657536453 Reorder the terms: 0.75 + v = 2.657536453 Solving 0.75 + v = 2.657536453 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + v = 2.657536453 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + v = 2.657536453 + -0.75 v = 2.657536453 + -0.75 Combine like terms: 2.657536453 + -0.75 = 1.907536453 v = 1.907536453 Simplifying v = 1.907536453

Subproblem 2

v + 0.75 = -2.657536453 Simplifying v + 0.75 = -2.657536453 Reorder the terms: 0.75 + v = -2.657536453 Solving 0.75 + v = -2.657536453 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + v = -2.657536453 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + v = -2.657536453 + -0.75 v = -2.657536453 + -0.75 Combine like terms: -2.657536453 + -0.75 = -3.407536453 v = -3.407536453 Simplifying v = -3.407536453

Solution

The solution to the problem is based on the solutions from the subproblems. v = {1.907536453, -3.407536453}

See similar equations:

| 15-6*x=9 | | 13-10x=40-17x | | 6m+6m=2(3+8m)-2(7+3m) | | 12x-48-(17+9y)=3n-12 | | 5+3(x-2)=5-4(x-4) | | 0=-16t^2+135t+76 | | -9-11x=13 | | 8a=72 | | 5+3(x-z)=5-4(x-4) | | (7t-2)-(-3t+1)=-33(1-3t) | | 12=6x-6 | | 12+3*x=-24 | | (3x+2)(4x+10)2= | | 37x-15=-13+85 | | 6x+8=-120-9 | | 8x+10=-8 | | -6(2-7m)=-2m+32 | | (y+3)(y^2-6y+1)= | | 20-4x=5+10 | | 8(1-x)=3x-4(1+2x) | | 25+4x=39 | | (y+5)(y^2-7y-10)= | | (10*r*s*r^2+rs)*(r^3-rs*8*r^2*s)= | | (3y+3)(4y^2+5y+20)= | | 1x=-12 | | 0.5p=60-q | | 0.75x^2-12=0 | | 0.5x=60-q | | (2y+7)(8y^2-6y+1)= | | 4a+6=7 | | x^2+3x=-12 | | 8*(-12)+12=5(-12)-24 |

Equations solver categories