f(9)=2.15(2*9^2-4*9-6)

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Solution for f(9)=2.15(2*9^2-4*9-6) equation: 



f(9)=2.15(2*9^2-4*9-6)

We move all terms to the left:

f(9)-(2.15(2*9^2-4*9-6))=0

We add all the numbers together, and all the variables

f^9-258=0

We do not support efpression: f^9

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