f(n)=3n^2

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Solution for f(n)=3n^2 equation: 


Simplifying
f(n) = 3n2

Multiply f * n
fn = 3n2

Solving
fn = 3n2

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Divide each side by 'n'.
f = 3n

Simplifying
f = 3n

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