4v^2+12v-7v=24

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Solution for 4v^2+12v-7v=24 equation:


Simplifying
4v2 + 12v + -7v = 24

Reorder the terms:
12v + -7v + 4v2 = 24

Combine like terms: 12v + -7v = 5v
5v + 4v2 = 24

Solving
5v + 4v2 = 24

Solving for variable 'v'.

Reorder the terms:
-24 + 5v + 4v2 = 24 + -24

Combine like terms: 24 + -24 = 0
-24 + 5v + 4v2 = 0

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

Divide each side by '4'.
-6 + 1.25v + v2 = 0

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + 1.25v + 6 + v2 = 0 + 6

Reorder the terms:
-6 + 6 + 1.25v + v2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + 1.25v + v2 = 0 + 6
1.25v + v2 = 0 + 6

Combine like terms: 0 + 6 = 6
1.25v + v2 = 6

The v term is 1.25v.  Take half its coefficient (0.625).
Square it (0.390625) and add it to both sides.

Add '0.390625' to each side of the equation.
1.25v + 0.390625 + v2 = 6 + 0.390625

Reorder the terms:
0.390625 + 1.25v + v2 = 6 + 0.390625

Combine like terms: 6 + 0.390625 = 6.390625
0.390625 + 1.25v + v2 = 6.390625

Factor a perfect square on the left side:
(v + 0.625)(v + 0.625) = 6.390625

Calculate the square root of the right side: 2.527968552

Break this problem into two subproblems by setting 
(v + 0.625) equal to 2.527968552 and -2.527968552.

Subproblem 1

v + 0.625 = 2.527968552 Simplifying v + 0.625 = 2.527968552 Reorder the terms: 0.625 + v = 2.527968552 Solving 0.625 + v = 2.527968552 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-0.625' to each side of the equation. 0.625 + -0.625 + v = 2.527968552 + -0.625 Combine like terms: 0.625 + -0.625 = 0.000 0.000 + v = 2.527968552 + -0.625 v = 2.527968552 + -0.625 Combine like terms: 2.527968552 + -0.625 = 1.902968552 v = 1.902968552 Simplifying v = 1.902968552

Subproblem 2

v + 0.625 = -2.527968552 Simplifying v + 0.625 = -2.527968552 Reorder the terms: 0.625 + v = -2.527968552 Solving 0.625 + v = -2.527968552 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '-0.625' to each side of the equation. 0.625 + -0.625 + v = -2.527968552 + -0.625 Combine like terms: 0.625 + -0.625 = 0.000 0.000 + v = -2.527968552 + -0.625 v = -2.527968552 + -0.625 Combine like terms: -2.527968552 + -0.625 = -3.152968552 v = -3.152968552 Simplifying v = -3.152968552

Solution

The solution to the problem is based on the solutions from the subproblems. v = {1.902968552, -3.152968552}

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