Question

what is the lim of x^3-7x/x^3 (x-->0)

Answer 1

\[\lim_{x\to0}\frac{x^3-7x}{x^3}\]?

Answer 2

just divide top and bottom by \(x^3\)

Answer 3

that's all you can really do

Answer 4

\[\frac{x^3-7 x}{x^3}=1-\frac{7}{x^2} \]As x approaches zero the RHS approaches negative infinity.