Jawabanmu

2014-06-09T21:46:33+07:00
P²+q² = (p+q)²-2pq
  10   = 6²-2(k-1)
  10   = 36-2k+2
  10   = 38-2k
  2k   = 38-10
   2k   = 28   k = 14