erm ok, i dont know if this is write but here it goes,
bismillah hirahman niraheem
1) y2-a2 (y squared - a squared)
2) x3 - x (x cubed)
3) a3- ab2
1)yxy -axa =(y2-a2)???
2)XxXxX-XxXxXxX= X2(X-X2)
3)axaxa-axbxaxb=a2(a-b2)
2 = squared im guessing you ment the same thing right?

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