whats the domain of
1x^3-1x^2-36x+36/1x^3-17x^2+90x-144

Question

whats the domain of 
1x^3-1x^2-36x+36/1x^3-17x^2+90x-144

anonymous · Answer

so would that be -inf to inf

accessdenied · Answer

The domain is the set of all values of x that will produce a real output.  (I assume this is two polynomials over each-other)

If you have a variable in the denominator, we know that the expression in the denominator cannot be 0.  So, restriction on the domain would be the values of x for when the denominator is 0.

anonymous · Answer

Thanks Access, I missed the fraction bar. Don't know what I was thinking. :)

accessdenied · Answer

$$ \frac{x^{3} - x^{2} - 36x + 36}{x^{3}  - 17x^{2} + 90x - 144} $$
This is the expression, correct?

anonymous · Answer

yes

nenadmatematika · Answer

the denominator must not be equal to zero so when you factorize polynomial below you get:|dw:1329780339214:dw|