Posted by Tara on Friday, February 22, 2013 at 11:01am.
i have a hard time understanding the non permissable values could someone please explain. I have solved the following equations but need help determining the values. Also if you could check to see if i did them right it would be alot of help
1. a2+7a+12/a2+4a+4 x a2a6/a29
(Ans)a+4/a+2
2.4/y2+5y+6  5/y2y12
(ans) (y26)/(y+2)(y+3)(y4)
any number following a letter is to the power of

non permissable values  JJ, Friday, February 22, 2013 at 11:18am
Nonpermissiable values.
You only have to worry about the denominators. A denominator can never be equal to zero since division by zero is not defined.
If a denominator is x + 2 , we don't want it to equal zero. So, x cannot = 2 sind that will cause the denominator to equal zero.

non permissable values  Angela, Friday, February 22, 2013 at 11:35am
that makes much more sense thank you i couldn't figure it out
so a restriction is someting that it cannot be divded or multiplied from right?

non permissable values  tara, Friday, February 22, 2013 at 11:35am
ok that helped thank you
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