Respuesta:
A) [tex](3x^{2} )*(9x^{6})=3*9x^{2+6} =3*9x^{8} =27x^{8}[/tex]
B) [tex](11y)*(11y)=(11y^{2} )=11^{2} y^{2} =121y^{2}[/tex]
C) [tex](49z)*(z)=49zz=49z^{2}[/tex]
D) [tex]80t*2t=160tt=160t^{2}[/tex]
Espero que te ayude :)
