Jawabanmu

2014-09-06T11:06:38+07:00
P(x) = 2x2 + 3x + c
x-1 = 0
x = 1 -> 11
p(1) = 2 (1) 2 + 3(1) + c = 11
      = 2 + 3 + c = 11
      = 5+c  = 11
            C  = 11 - 5
            C  = 6