U5 => 2×5 × ( 5+2) => 10×7 = 70.
U3 => 2×3 (3+2) => 6×5 = 30
U5 - U3 = 70-30 ==> 40.
Maaf kl salah.
Un = 2n (n + 2)
U5 = 2(5) (5 + 2)
U5 = 2(5)(7) = 70
U3 = 2(3) (3 + 2)
U3 = 2(3)(5) = 30
U5 - U3 = 70 - 30 = 40
maaf kalo salah
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U5 => 2×5 × ( 5+2) => 10×7 = 70.
U3 => 2×3 (3+2) => 6×5 = 30
U5 - U3 = 70-30 ==> 40.
Maaf kl salah.
Un = 2n (n + 2)
U5 = 2(5) (5 + 2)
U5 = 2(5)(7) = 70
U3 = 2(3) (3 + 2)
U3 = 2(3)(5) = 30
U5 - U3 = 70 - 30 = 40
maaf kalo salah