Answer:
d
Step-by-step explanation:
Using the rule of exponents
[tex]a^{m}[/tex] × [tex]a^{n}[/tex] ⇔ [tex]a^{(m+n)}[/tex]
Given
(3a²[tex]b^{4}[/tex] )(- 8ab³)
= 3 × - 8 × a² × a × [tex]b^{4}[/tex] × b³
= - 24 × [tex]a^{(2+1)}[/tex] × [tex]b^{(4+3)}[/tex]
= - 24 × a³ × [tex]b^{7}[/tex]
= - 24a³[tex]b^{7}[/tex] → d
