7v^2=-18v+9

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Solution for 7v^2=-18v+9 equation:


Simplifying
7v2 = -18v + 9

Reorder the terms:
7v2 = 9 + -18v

Solving
7v2 = 9 + -18v

Solving for variable 'v'.

Reorder the terms:
-9 + 18v + 7v2 = 9 + -18v + -9 + 18v

Reorder the terms:
-9 + 18v + 7v2 = 9 + -9 + -18v + 18v

Combine like terms: 9 + -9 = 0
-9 + 18v + 7v2 = 0 + -18v + 18v
-9 + 18v + 7v2 = -18v + 18v

Combine like terms: -18v + 18v = 0
-9 + 18v + 7v2 = 0

Factor a trinomial.
(-3 + -1v)(3 + -7v) = 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 '(3 + -7v)' equal to zero and attempt to solve: Simplifying 3 + -7v = 0 Solving 3 + -7v = 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 + -7v = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -7v = 0 + -3 -7v = 0 + -3 Combine like terms: 0 + -3 = -3 -7v = -3 Divide each side by '-7'. v = 0.4285714286 Simplifying v = 0.4285714286

Solution

v = {-3, 0.4285714286}

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