v^2-40v+400=0

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Solution for v^2-40v+400=0 equation:


Simplifying
v2 + -40v + 400 = 0

Reorder the terms:
400 + -40v + v2 = 0

Solving
400 + -40v + v2 = 0

Solving for variable 'v'.

Factor a trinomial.
(20 + -1v)(20 + -1v) = 0

Subproblem 1

Set the factor '(20 + -1v)' equal to zero and attempt to solve: Simplifying 20 + -1v = 0 Solving 20 + -1v = 0 Move all terms containing v to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + -20 + -1v = 0 + -20 Combine like terms: 20 + -20 = 0 0 + -1v = 0 + -20 -1v = 0 + -20 Combine like terms: 0 + -20 = -20 -1v = -20 Divide each side by '-1'. v = 20 Simplifying v = 20

Subproblem 2

Set the factor '(20 + -1v)' equal to zero and attempt to solve: Simplifying 20 + -1v = 0 Solving 20 + -1v = 0 Move all terms containing v to the left, all other terms to the right. Add '-20' to each side of the equation. 20 + -20 + -1v = 0 + -20 Combine like terms: 20 + -20 = 0 0 + -1v = 0 + -20 -1v = 0 + -20 Combine like terms: 0 + -20 = -20 -1v = -20 Divide each side by '-1'. v = 20 Simplifying v = 20

Solution

v = {20, 20}

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