Answer:

-17 – (-8)

Option 3 is correct.

Step-by-step explanation:

Phrase: “the difference between -17 and -8”

Expression: To write the phrase into algebraic form with a variable or constant.

Difference: write two number using subtraction between them.

“the difference between -17 and -8”

First number is -17 and second number is -8

Expression: -17 difference -8

Now using minus sign write as expression.

Rightarrow -17-(-8)

Hence, The correct expression is -17-(-8)