Final answer:
A variable expression with r and s can be simply represented as 'r + s', 'rs' or more complex expressions like '2r - 3s' or '3rs + 2'. The values of r and s can represent any number, and the value of the expression depends on the values of these two variables.
Step-by-step explanation:
In mathematics, writing a variable expression with r and s involves using these two variables in an equation or expression. Remember, an expression is a combination of numbers, variables, and operation symbols without an equals sign.
A variable expression with r and s can be as simple as 'r + s' or 'rs', where r and s stand for different numbers. Another example could be '2r - 3s' or '3rs + 2'. Here, the numbers 2 and 3 are coefficients of the variables r and s respectively.
The variables r and s can represent any number, and their value is not fixed. Therefore, the value of the expression will change depending on the values of r and s. This is the basis of variable expressions in Algebra.
Learn more about Variable Expressions