Well it's a dare so I guess I'll do it.
Answer:
The greatest common factor is 21,
Step-by-step explanation:
Find the prime factors of each term in order to find the greatest common factor (GCF).
(x + 5)(y + 10)
x(y + 10) + 5(y + 10)
x(y) + x(10) + 5(y) + 5(10)
xy + 10x + 5y + 50
Number one is 68 you have to divide on this download photomath its better because all you have to do is take a picture and it shows you how to do it ;)