Answer:
[tex]27a^6b^8 + 63a^5b^8 - 25a^8b^8[/tex]
Step-by-step explanation:
Given
[tex]9a^3b^6(3a^3b^2+7a^2b^2)-(5a^4b^4)^2[/tex]
Required
Simplify
[tex]9a^3b^6(3a^3b^2+7a^2b^2)-(5a^4b^4)^2[/tex]
Open both brackets
[tex]9a^3b^6*3a^3b^2+9a^3b^6*7a^2b^2-5a^4b^4*5a^4b^4[/tex]
This gives
[tex]27a^6b^8 + 63a^5b^8 - 25a^8b^8[/tex]
