tolong bantu ngerjain kakak. pake cara yah kakak;)

Langsung aja y

r = (U5 : U2)^1/(5-2)
r = (64 : 8)^1/3
r = (8)^1/3
r = (2³)^1/3
r = 2

U7 = U5 × r²
U7 = 64 × 2²
U7 = 64 × 4
U7 = 256
Jawabannya B

Semoga berguna +_+