Answer:
[tex]y^1^2[/tex]
Step-by-step explanation:
apply the rule (a) = a [tex](y^4)=y^4[/tex]
[tex]y^8y^4[/tex]
apply the exponent rule
[tex]y^8y^4 = y^8^+^4[/tex]
[tex]=y^8^+^4[/tex]
add the numbers
[tex]8+4=12[/tex]
which would make the answer
[tex]y^1^2[/tex]
