1. y^3-4y^2+4y-3
2. x^2*y+4xy^2+4y^3
3. - p^3+10p^2*q+25pq^2
4. x^3-2x^2-7x-4
5. b^2-a^2
6. 2p^2+18
7. 2a^2+50
8. 2y^2+32
9. x^2+y^2+8x-8y+32
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Answers & Comments
1. y^3-4y^2+4y-3
2. x^2*y+4xy^2+4y^3
3. - p^3+10p^2*q+25pq^2
4. x^3-2x^2-7x-4
5. b^2-a^2
6. 2p^2+18
7. 2a^2+50
8. 2y^2+32
9. x^2+y^2+8x-8y+32