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Choose the function that expresses the relationship `2x+10y^3=3` as a function, `y = f(x)`, if possible.
`f(x)=(3-2 x)/10`
`f(x)=root(3)((3-2 x)/10)`
This equation cannot be expressed as a function
`f(x)=sqrt((3-2 x)/10),-sqrt((3-2 x)/10)`
Box 1:
Select the best answer
`2`
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