v^2=9v-20

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Solution for v^2=9v-20 equation:


Simplifying
v2 = 9v + -20

Reorder the terms:
v2 = -20 + 9v

Solving
v2 = -20 + 9v

Solving for variable 'v'.

Reorder the terms:
20 + -9v + v2 = -20 + 9v + 20 + -9v

Reorder the terms:
20 + -9v + v2 = -20 + 20 + 9v + -9v

Combine like terms: -20 + 20 = 0
20 + -9v + v2 = 0 + 9v + -9v
20 + -9v + v2 = 9v + -9v

Combine like terms: 9v + -9v = 0
20 + -9v + v2 = 0

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

Subproblem 1

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

Subproblem 2

Set the factor '(5 + -1v)' equal to zero and attempt to solve: Simplifying 5 + -1v = 0 Solving 5 + -1v = 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 + -1v = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1v = 0 + -5 -1v = 0 + -5 Combine like terms: 0 + -5 = -5 -1v = -5 Divide each side by '-1'. v = 5 Simplifying v = 5

Solution

v = {4, 5}

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