28271838*ab2

It looks like you're trying to multiply the number 28,271,838 by a variable or term "ab2." However, in algebra, we cannot directly multiply a numerical term with a variable without knowing the values of those variables.

If "ab2" represents a product where "a" and "b" are variables, the expression can be written as:

28,271,838 * ab²

If you meant something else or need further clarification, please let me know!