f(z)=z^3+2z^2+1

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Solution for f(z)=z^3+2z^2+1 equation: 


Simplifying
f(z) = z3 + 2z2 + 1

Multiply f * z
fz = z3 + 2z2 + 1

Reorder the terms:
fz = 1 + 2z2 + z3

Solving
fz = 1 + 2z2 + z3

Solving for variable 'f'.

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

Divide each side by 'z'.
f = z-1 + 2z + z2

Simplifying
f = z-1 + 2z + z2

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