4v^2+5=-21v

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Solution for 4v^2+5=-21v equation:


Simplifying
4v2 + 5 = -21v

Reorder the terms:
5 + 4v2 = -21v

Solving
5 + 4v2 = -21v

Solving for variable 'v'.

Reorder the terms:
5 + 21v + 4v2 = -21v + 21v

Combine like terms: -21v + 21v = 0
5 + 21v + 4v2 = 0

Factor a trinomial.
(5 + v)(1 + 4v) = 0

Subproblem 1

Set the factor '(5 + v)' equal to zero and attempt to solve: Simplifying 5 + v = 0 Solving 5 + v = 0 Move all terms containing v to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + v = 0 + -5 Combine like terms: 5 + -5 = 0 0 + v = 0 + -5 v = 0 + -5 Combine like terms: 0 + -5 = -5 v = -5 Simplifying v = -5

Subproblem 2

Set the factor '(1 + 4v)' equal to zero and attempt to solve: Simplifying 1 + 4v = 0 Solving 1 + 4v = 0 Move all terms containing v to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 4v = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 4v = 0 + -1 4v = 0 + -1 Combine like terms: 0 + -1 = -1 4v = -1 Divide each side by '4'. v = -0.25 Simplifying v = -0.25

Solution

v = {-5, -0.25}

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