Answer:
(x+y)(8a - 1)
Explanation:
For the first expression:
(a-7) - y(a-7)
We can factor out (a-7) from both terms:
(a-7)(1 - y)
So, the factored expression is:
(a-7)(1 - y)
For the second expression:
8a(x+y) - (x+y)
We can factor out (x+y) from both terms:
(x+y)(8a - 1)
So, the factored expression is:
(x+y)(8a - 1)