Re: or
RicanGurl said:
You're guessing. You really need to
know! :!:
As was explained in another thread, to find the domain, you need to find any prohibited points or region; the domain is
everything else. In particular, the domain is
not the prohibited values, since the domain is the
allowed values.
In this case, as you've been told, you need to find the zeroes of the denominator. Since you can
not divide by zero, this means that the zeroes would be the
prohibited (forbidden, disallowed) values; they would
not be in the domain.
Once you have found the zeroes of x(x<sup>2</sup> - 49), the domain will be everything
else. That is, the domain will be of the form "x not equal to (the list of forbidden values)".
Now, using the examples, solutions, and lesson-links you've been given, please reply showing your solution (that is, all the steps) for "x(x<sup>2</sup> - 49) = 0".
Thank you!
Eliz.