Answer:
They are both correct because, they both used the properties of equality.
Step-by-step explanation:
The numbers are 15,18
They add to 33 and a difference of 3
The greatest common factor: 20x^6y 40x^4y^2 10x^5y^5 is 10x^4y.
20x^6y = 10x^4y*2x^2
40x^4y^2 = 10x^4y*4y
10x^5y^5 = 10x^4y*y^4
