Answer:
[tex] {a}^{8} [/tex]
Step-by-step explanation:
a is a¹ and you have a^7 in multiplication you add the exponents. If you were to have a numerical value, you would replace a and calculate. If a = -5 then: a^8 =
[tex]( - 5)^{8} [/tex]
which is = 390 625
