Answer:
Only 2 factors have exactly two terms i.e, (x+4)(y+4)
Explanation:
Given : Expression

To find : How many factors in the expression have exactly two terms?
Solution :
Expression
cannot be further factorized.
Now, We count the terms in each factor.
1) Factor- 8
Only 1 term i.e, 8 itself.
2) Factor- x+4
Two terms .i.e., x and 4
3) Factor- y+4
Two terms .i.e., y and 4
4) Factor-

Three terms .i.e.,
, 4z and 7.
Therefore, Only 2 factors have exactly two terms i.e, (x+4)(y+4).