4v^2-25v+35=3

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Solution for 4v^2-25v+35=3 equation:


Simplifying
4v2 + -25v + 35 = 3

Reorder the terms:
35 + -25v + 4v2 = 3

Solving
35 + -25v + 4v2 = 3

Solving for variable 'v'.

Reorder the terms:
35 + -3 + -25v + 4v2 = 3 + -3

Combine like terms: 35 + -3 = 32
32 + -25v + 4v2 = 3 + -3

Combine like terms: 3 + -3 = 0
32 + -25v + 4v2 = 0

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

Divide each side by '4'.
8 + -6.25v + v2 = 0

Move the constant term to the right:

Add '-8' to each side of the equation.
8 + -6.25v + -8 + v2 = 0 + -8

Reorder the terms:
8 + -8 + -6.25v + v2 = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -6.25v + v2 = 0 + -8
-6.25v + v2 = 0 + -8

Combine like terms: 0 + -8 = -8
-6.25v + v2 = -8

The v term is -6.25v.  Take half its coefficient (-3.125).
Square it (9.765625) and add it to both sides.

Add '9.765625' to each side of the equation.
-6.25v + 9.765625 + v2 = -8 + 9.765625

Reorder the terms:
9.765625 + -6.25v + v2 = -8 + 9.765625

Combine like terms: -8 + 9.765625 = 1.765625
9.765625 + -6.25v + v2 = 1.765625

Factor a perfect square on the left side:
(v + -3.125)(v + -3.125) = 1.765625

Calculate the square root of the right side: 1.328768227

Break this problem into two subproblems by setting 
(v + -3.125) equal to 1.328768227 and -1.328768227.

Subproblem 1

v + -3.125 = 1.328768227 Simplifying v + -3.125 = 1.328768227 Reorder the terms: -3.125 + v = 1.328768227 Solving -3.125 + v = 1.328768227 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '3.125' to each side of the equation. -3.125 + 3.125 + v = 1.328768227 + 3.125 Combine like terms: -3.125 + 3.125 = 0.000 0.000 + v = 1.328768227 + 3.125 v = 1.328768227 + 3.125 Combine like terms: 1.328768227 + 3.125 = 4.453768227 v = 4.453768227 Simplifying v = 4.453768227

Subproblem 2

v + -3.125 = -1.328768227 Simplifying v + -3.125 = -1.328768227 Reorder the terms: -3.125 + v = -1.328768227 Solving -3.125 + v = -1.328768227 Solving for variable 'v'. Move all terms containing v to the left, all other terms to the right. Add '3.125' to each side of the equation. -3.125 + 3.125 + v = -1.328768227 + 3.125 Combine like terms: -3.125 + 3.125 = 0.000 0.000 + v = -1.328768227 + 3.125 v = -1.328768227 + 3.125 Combine like terms: -1.328768227 + 3.125 = 1.796231773 v = 1.796231773 Simplifying v = 1.796231773

Solution

The solution to the problem is based on the solutions from the subproblems. v = {4.453768227, 1.796231773}

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