Final answer:
To write an integer expression that equals 10 and contains at least 2 positive integers and 2 negative integers, use addition and subtraction symbols like -5 + 3 + (-3) + 15 - 5 = 10.
Step-by-step explanation:
To write an integer expression that equals 10 and contains at least 2 positive integers and 2 negative integers, we can use addition and subtraction symbols. One possible expression is:
-5 + 3 + (-3) + 15 - 5 = 10
In this expression, we have 2 negative integers (-5, -3) and 2 positive integers (3, 15). By using addition and subtraction, we can combine these numbers to equal 10.