What is the domain of 4x^2-x-3 ?

1 Answer
George C.
Mar 29, 2017

The domain of 4x^2-x-3 is the whole of RR, that is (-oo, oo).

Explanation:

Any polynomial in x is well defined for any real value of x.

The domain could actually be any set of numbers (or certain other algebraic objects), but conventionally it is often assumed that the intended domain is the maximal subset of RR for which the function is defined.

So conventionally, the domain of 4x^2-x-3 is the whole of RR.

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