Question

Minta tolong dulu yah
yang no 6

Answer 1

k = 4 - 6

K = 4
(2k - 1)²
(2(4) - 1)²
(8 - 1)²
 = 7²
 = 49

K = 5
(2k - 1)²
(2(5) - 1)²
(10 - 1)²
  = 9²
  = 81

K = 6
(2k - 1)²
(2(6) - 1)²
(12 - 1)²
  = 11²
  = 121

Maka :
49 + 81 + 121
= 251  ===> (B)