So to create a word phrase, you have to identify all of the operations going on here...
5(17 - 8)
within
the parentheses, you have subtraction. that's usually called the
"difference" in word phrases. you also have a 5 outside the parentheses,
leaving it to be multiplied inside, and multiplication is typically
referred to as a "product"
with that info, you can construct a
word phrase such as "the product of 5 and the difference between 17 and
8" or "the difference between 17 and 8 multiplied by 5"