-4v^2+9v=-28

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Solution for -4v^2+9v=-28 equation:


Simplifying
-4v2 + 9v = -28

Reorder the terms:
9v + -4v2 = -28

Solving
9v + -4v2 = -28

Solving for variable 'v'.

Reorder the terms:
28 + 9v + -4v2 = -28 + 28

Combine like terms: -28 + 28 = 0
28 + 9v + -4v2 = 0

Factor a trinomial.
(4 + -1v)(7 + 4v) = 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 '(7 + 4v)' equal to zero and attempt to solve: Simplifying 7 + 4v = 0 Solving 7 + 4v = 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 + 4v = 0 + -7 Combine like terms: 7 + -7 = 0 0 + 4v = 0 + -7 4v = 0 + -7 Combine like terms: 0 + -7 = -7 4v = -7 Divide each side by '4'. v = -1.75 Simplifying v = -1.75

Solution

v = {4, -1.75}

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