f(n)=5n^2+7n

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Solution for f(n)=5n^2+7n equation: 


Simplifying
f(n) = 5n2 + 7n

Multiply f * n
fn = 5n2 + 7n

Reorder the terms:
fn = 7n + 5n2

Solving
fn = 7n + 5n2

Solving for variable 'f'.

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

Divide each side by 'n'.
f = 7 + 5n

Simplifying
f = 7 + 5n

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