-11ab+a*8*b+5ab

To simplify the expression -11ab + a8b + 5ab, you can combine like terms:

Starting with the terms containing "ab": -11ab + 5ab = -6ab

Now, let's look at the term a8b. Multiplying the coefficients, we get: a * 8 * b = 8ab

Combining all the simplified terms, the expression becomes: -6ab + 8ab = 2ab

Therefore, the simplified expression is 2ab.