Answer:
27[tex]x^{4}[/tex][tex]y^{5}[/tex]
Step-by-step explanation:
Using the rule of exponents
[tex]a^{m}[/tex] × [tex]a^{n}[/tex] ⇔ [tex]a^{(m+n)}[/tex]
Given
9x[tex]y^{4}[/tex] × 3x³y
= 9 × 3 × x × x³ × [tex]y^{4}[/tex] × y
= 27 × [tex]x^{((1+3)}[/tex] × [tex]y^{(4+1)}[/tex]
= 27[tex]x^{4}[/tex][tex]y^{5}[/tex]
