Respuesta :

The restrictions on the variables x and y be

x = 0  ⇒  2/0  =

y = 0  ⇒  2/0 =

What is meant by expression?

Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation. An expression's structure exists as pursues: Expression: (Math Operator, Number/Variable, Math Operator)

How to divide the given expression (7x/4y³) ÷ (21x³/8y)?

(7x/4y³) × (8y/21x³) = (2/3x² y³)

What are the restrictions on the variables?

Here, x = 0  ⇒  2/0  = ∞

Similarly, y = 0  ⇒  2/0 = ∞

So , x, y ≠ 0

To learn more about restrictions on the variables, refer:

https://brainly.com/question/10957518

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