2v^2=13v-21

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Solution for 2v^2=13v-21 equation:


Simplifying
2v2 = 13v + -21

Reorder the terms:
2v2 = -21 + 13v

Solving
2v2 = -21 + 13v

Solving for variable 'v'.

Reorder the terms:
21 + -13v + 2v2 = -21 + 13v + 21 + -13v

Reorder the terms:
21 + -13v + 2v2 = -21 + 21 + 13v + -13v

Combine like terms: -21 + 21 = 0
21 + -13v + 2v2 = 0 + 13v + -13v
21 + -13v + 2v2 = 13v + -13v

Combine like terms: 13v + -13v = 0
21 + -13v + 2v2 = 0

Factor a trinomial.
(3 + -1v)(7 + -2v) = 0

Subproblem 1

Set the factor '(3 + -1v)' equal to zero and attempt to solve: Simplifying 3 + -1v = 0 Solving 3 + -1v = 0 Move all terms containing v to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1v = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1v = 0 + -3 -1v = 0 + -3 Combine like terms: 0 + -3 = -3 -1v = -3 Divide each side by '-1'. v = 3 Simplifying v = 3

Subproblem 2

Set the factor '(7 + -2v)' equal to zero and attempt to solve: Simplifying 7 + -2v = 0 Solving 7 + -2v = 0 Move all terms containing v to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -2v = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2v = 0 + -7 -2v = 0 + -7 Combine like terms: 0 + -7 = -7 -2v = -7 Divide each side by '-2'. v = 3.5 Simplifying v = 3.5

Solution

v = {3, 3.5}

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