Question

supply an expression to make each of the following rational algebraic x-y/?

Answer 1

Answer:

1

Step-by-step explanation:

because anything divided by 1 give itself

Answer 2

Note: the question image is attached below.

Given: expression$\frac{x-y}{?}$.

To find: an expression that will rationalise the given expression.

Solution:

Know that, Rational expressions are fractions that have a polynomial in the numerator, denominator, or both.

Observe the numerator of the given expression, it is polynomial of two variable.

Replace the ? with 1 to make the given expression a rational expression.

$\frac{x-y}{?}=\frac{x-y}{1}$

Hence, adding 1 to the given expression to makes it an rational algebraic expression.