Answer:
3
Step-by-step explanation:
5-2=3
Just do it the other way to find the answer!
I hope this helps!
Answer:

Step-by-step explanation:

I think it is because they are both different differences
The answer is a.
x^2 -10x+25 = x*x-2*5*x+5*5 => (x-5)(x-5)