Identify the terms of expression 4pq + p - q - r.
4, p, q, r
4pq, p, q, r
4pq, p, -q, -r
4pq, p, -q, r
The terms in an expression are separated by operator + (addition). Therefore, terms of the expression 4pq + p - q - r are 4pq, p, -q, and -r.