[math][(3/2a^3b)^2:(-3/4ab)]^2:(-2/3a^6b^2)+(5/2a^4-3a^3xx(-1/4a)[/math]
[math][(9/4a^6b^2):(-3/4ab)]^2:(-2/3a^6b^2)+(5/2a^4+3/4a^4)[/math]
[math][-3a^5b]^2:(-2/3a^6b^2)+13/4a^4[/math]
[math][9a^10b^2]:(-2/3a^6b^2)+13/4a^4[/math]
[math]27/2a^4+13/4a^4[/math]
[math]-41/4a^4[/math]
