Упростите срочно дам 60 бал.!!!

1)=2x^9×(16a^4x^6)=32a^4x^9×2x^5=64a^4x^24 2)=-a^15b^30×5ab^4=-5a^16b^34 3)=0,4m^6n^2p^8×25mn^3p=10m^7n^5p^9 4)=(-5:3a^3b^6)×(9:25a^5b^3)=-45:75a^8b^9 5)=(5:2x^4y)×(16:49x^4y^5)=80:98x^8y6=40:49x^8y^6