Answer:
1. 15x^2+29x+12
2. 7x^2-26x-8
3. e^2+20e+100
4. h^2-10h+25
5. g^3+9g^2+27g+27
6. m^3-3m^2r+3mr^2-r^3
7. 9d^2-e^2
8. 16r^2-25
9 . p^3+t^3
10. a^3-216
