Are there any numbers for which the expression $(8x^4+9)/(9x^2+18x)$ undefined?

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Answer 1 · 2017-07-30T10:09:33

Yes. This expression is undefined for $x=0$ and $x=-2$

This expression is undefined for those values of $x$ , for which the denominator is zero.

$9x^2+18x=0$

$9x(x+2)=0$

$x=0 vv x=-2$

Are there any numbers for which the expression (8x^4+9)/(9x^2+18x)(8x^4+9)/(9x^2+18x) undefined?