1x2−4=P(x+2)+Q(x−2)
I = p(x - 2) + Q(x + 2)
Let x = 2
I = P(2 - 2) + Q(2+ 2)
I = -4Q
Q = 14
Let x = -2
I = P(-2 - 2) + Q(-2 + 2)
I = -4p
P = 1−4
PQQ = - 14+14
= 0