Here's the question...
Find the set of values for which the following expression is defined.
x^2 - 9 / x^2 + 2x - 63
I believe here I'm supposed to set the denominator to equal to zero.
So I go...
x^2 +2x - 63 = 0 Then solve for x.
So I add 63 to both sides...
x^2 +2x = 63
I factor..
(x+2x)(x+1) =63
But now I'm stumped....
I know this must seem so easy to y'all but I've been out of school too long! LOL
Any help on this would be appreciated.
Find the set of values for which the following expression is defined.
x^2 - 9 / x^2 + 2x - 63
I believe here I'm supposed to set the denominator to equal to zero.
So I go...
x^2 +2x - 63 = 0 Then solve for x.
So I add 63 to both sides...
x^2 +2x = 63
I factor..
(x+2x)(x+1) =63
But now I'm stumped....
I know this must seem so easy to y'all but I've been out of school too long! LOL
Any help on this would be appreciated.