Determine if the expression is rational. If not, explain why.
Answer
Yeah, it's a rational expression. Zero is a polynomial, and is allowed on the top. Remember, he's not a total outcast. He's just on restricted access.
Example 2
Determine if the expression is rational. If not, explain why.
Answer
Not a rational expression. The numerator has the term 9x, so it's not a polynomial.
Example 3
Determine if the expression is rational. If not, explain why.
Answer
Ding ding ding, it's a rational expression: is a constant polynomial, and we can flip that x -5 down into the denominator as x5. That'll make the numerator and denominator both into standard-issue polynomials.
Example 4
Determine if the expression is rational. If not, explain why.
Answer
Not a rational expression. The denominator is equivalent to 0. We knew he'd try to get away with that.
Example 5
Determine if the expression x is rational. If not, explain why.
Answer
Rational expression, since and we know x and 1 are both polynomials.
is rational. If not, explain why.
is rational. If not, explain why.
is rational. If not, explain why.
is a constant polynomial, and we can flip that x -5 down into the denominator as x5. That'll make the numerator and denominator both into standard-issue polynomials.
is rational. If not, explain why.
and we know x and 1 are both polynomials.