Answer:
z⁻⁷
Explanation:
Use (zᵃ)ᵇ = zᵃᵇ and zᵃ * zᵇ = z⁽ᵃ⁺ᵇ⁾
(A)
ZxZ-8=
Z-7
Note* Z-8=Z in the power of - 8 and Z-7=Z in the power of - 7
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