v^2-3v-8=2

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Solution for v^2-3v-8=2 equation:


Simplifying
v2 + -3v + -8 = 2

Reorder the terms:
-8 + -3v + v2 = 2

Solving
-8 + -3v + v2 = 2

Solving for variable 'v'.

Reorder the terms:
-8 + -2 + -3v + v2 = 2 + -2

Combine like terms: -8 + -2 = -10
-10 + -3v + v2 = 2 + -2

Combine like terms: 2 + -2 = 0
-10 + -3v + v2 = 0

Factor a trinomial.
(-2 + -1v)(5 + -1v) = 0

Subproblem 1

Set the factor '(-2 + -1v)' equal to zero and attempt to solve: Simplifying -2 + -1v = 0 Solving -2 + -1v = 0 Move all terms containing v to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1v = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1v = 0 + 2 -1v = 0 + 2 Combine like terms: 0 + 2 = 2 -1v = 2 Divide each side by '-1'. v = -2 Simplifying v = -2

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 = {-2, 5}

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