Answer:
[tex]-18x^2y^6[/tex]
Step-by-step explanation:
we have
[tex](3xy^2)(-6xy^4)[/tex]
Applying property of exponents
[tex]x^{m} x^{n}=x^{m+n}[/tex]
[tex](3xy^2)(-6xy^4)=(3)(-6)(x^{1+1})(y^{2+4})=(-18)(x^{2})(y^{6})=-18x^2y^6[/tex]