tolong bantu jawab ..........

3k^2 + 2k + 7
* k = 1
3(1) + 2(1) + 7 = 12

*k = 2
3(4) + 2(2) + 7 = 12 + 4 + 7 = 23

*k = 3
3(9) + 2(3) + 7 = 27 + 6 + 7 = 40

*k = 4
3(16) + 2(4) + 7 = 48 + 8 + 7 = 63

12 + 23 + 40 + 63 = 138

Semoga membantu