v^2-4v=3v+30

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Solution for v^2-4v=3v+30 equation:


Simplifying
v2 + -4v = 3v + 30

Reorder the terms:
-4v + v2 = 3v + 30

Reorder the terms:
-4v + v2 = 30 + 3v

Solving
-4v + v2 = 30 + 3v

Solving for variable 'v'.

Reorder the terms:
-30 + -4v + -3v + v2 = 30 + 3v + -30 + -3v

Combine like terms: -4v + -3v = -7v
-30 + -7v + v2 = 30 + 3v + -30 + -3v

Reorder the terms:
-30 + -7v + v2 = 30 + -30 + 3v + -3v

Combine like terms: 30 + -30 = 0
-30 + -7v + v2 = 0 + 3v + -3v
-30 + -7v + v2 = 3v + -3v

Combine like terms: 3v + -3v = 0
-30 + -7v + v2 = 0

Factor a trinomial.
(-3 + -1v)(10 + -1v) = 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 '(10 + -1v)' equal to zero and attempt to solve: Simplifying 10 + -1v = 0 Solving 10 + -1v = 0 Move all terms containing v to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + -1v = 0 + -10 Combine like terms: 10 + -10 = 0 0 + -1v = 0 + -10 -1v = 0 + -10 Combine like terms: 0 + -10 = -10 -1v = -10 Divide each side by '-1'. v = 10 Simplifying v = 10

Solution

v = {-3, 10}

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