1. Simplifying Rational Expressions
Sign In
Expression | Is It a Polynomial? | |
---|---|---|
Numerator | x+2 | No |
Denominator | x2+4 | Yes |
The numerator of the expression is a sum of x and 2. Since x is not a monomial, the numerator is not a polynomial. Therefore, the given expression is not a rational expression.
Expression | Is It a Polynomial? | |
---|---|---|
Numerator | y | Yes |
Denominator | y−1 | Yes |
The numerator of the expression is a monomial, so it is a polynomial. The denominator of the expression is a sum of a monomial y and a real number -1, so it is also a polynomial. Therefore, the given expression is a rational expression.