(-12a^3b^5)/(4a^2b^7) state any restrictions on the variable(s) if they exist.

PLEASE HELP (30 points)

Step-by-step explanation:

So we have the rational expression:

In rational expressions, the restrictions of the expression would be the zeros of the denominator Therefore, set the denominator equal to zero and solve for its zeros:

Zero Product Property:

Solve for a and b:

Therefore, the restrictions on the variables are that a and b cannot equal zero.