Answer:
The correct option is B) [tex]10m^{7}+8m^{5}-2m^{4}[/tex]
Step-by-step explanation:
we need to multiply the given expression
Given [tex]2m^{4}(5m^{3}+4m-1)[/tex]
Multiply polynomial term wise,
[tex](2m^{4}\times 5m^{3})+(2m^{4}\times 4m)-2m^{4}[/tex]
[tex]10m^{4+3}+8m^{4+1}-2m^{4}[/tex]
[tex]10m^{7}+8m^{5}-2m^{4}[/tex]
Therefore, the correct option is B) [tex]10m^{7}+8m^{5}-2m^{4}[/tex]
