U2=2^2 dan U5=8. tentukan U10

U2 = a + b = 2^2 = 4
U5 = a + 4b = 8

eliminasi a
a + 4b = 8
a + b = 4
--------------- -
3b = 4
b = 4/3

subtitusi nilai b ke pers
a + b = 4
a + 4/3 = 12/3
a = 12/3 - 4/3
a = 8/3

U10 = a + 9b
U10 = 8/3 + 9.4/3
U10 = 8/3 + 36/3
U10 = 44/3

semoga membantu ^-^