[tex]\text{Use:}\\\\(a\cdot b)^n=a^n\cdot b^n\\\\(a^n)^m=a^{nm}\\\\a^n\cdot a^m=a^{n+m}\\\\......................................\\\\\left(4y^2\right)^3\left(3y^2\right)=4^3\left(y^2\right)^3\cdot3y^2=64y^{2\cdot3}\cdot3y^2=192y^6y^2=192y^{6+2}=192y^8[/tex]
