Answer:
10y^7
Step-by-step explanation:
because 2x5=10
and when multiplying with powers you add the powers together so 4+3=7
now you have 10y^7
hope this helped!!
10[tex]y^{7}[/tex]
2[tex]y^{4}[/tex] · 5y³
10[tex]y^{3}+y^{4}[/tex]
