Дана первая производная второй интерполяционнной формулы Ньютона. Надо найти вторую производную

Boys: - aren't clever as girls
          - bully other children
          - are better at sport than girls
          - never gossip about their friends
          - often fight with each other
          - often hurt girls
          - don't care about what they look like
          - often call girls names and tease
Girls: -are much better at maths
         -are much helpful at home than boys
         -often quarrel with each other
         -always boast about new things they have bought
         - get on well with each other
You can always trust both them :)

Boys: - aren't clever as girls
          - bully other children
          - are better at sport than girls
          - never gossip about their friends
          - often fight with each other
          - often hurt girls
          - don't care about what they look like
          - often call girls names and tease
Girls: -are much better at maths
         -are much helpful at home than boys
         -often quarrel with each other
         -always boast about new things they have bought
         - get on well with each other
You can always trust both them :)