rational zeroes

sicsniper911

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Jul 17, 2009
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What are all the possible rational zeros for f(x) = x^3 + 8x + 6? i have no idea what a rational zero is or what to do with one. please help.
 
f(x) = x^3 + 8x + 6

Consider the factors of 6 {p}: ±1, ±2, ±3, ±6
Now the factors of 1{q}: ±1

Form rational numbers p/q: ±1, ±2, ±3, ±6

These are the possible rational zeros of f(x).

By the way, I find there are no rational zeros for f(x).
 
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