when you multiplying monomials compare and contrast how you combine parts if you have numbers or variables?

When you multiply monomials, first multiply the coefficients and then multiply the variables by adding their exponents.

Explanation:

When you multiply two monomials with each other, first multiply the coefficients and then multiply the variables by adding their exponents. Coefficients are the constant numbers that is present in front of variables so first multiply the coefficient of variables and after that multiply similar variable such as x-x and y-y etc by adding their powers or exponents but if the variable are different such as x and y etc then their their exponents can't be added.