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f(1/4)=(1-4.25)/15
We move all terms to the left:
f(1/4)-((1-4.25)/15)=0
We add all the numbers together, and all the variables
f(+1/4)-((-3.25)/15)=0
We multiply parentheses
f^2-((-3.25)/15)=0
We multiply all the terms by the denominator
f^2*15)-((-3.25)=0
Wy multiply elements
15f^3=0
We do not support efpression: f^3
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