There are four main blood groups (types of blood): A, B, AB and O. Your blood group is determined by the genes you inherit from your parents. Each group can be either RhD positive or RhD negative, which means your blood group can be one of the eight types shown below (see the Rh system).
Definition of polynomial : a mathematical expression of one or more algebraic terms each of which consists of a constant multiplied by one or more variables raised to a nonnegative integral power (such as a + bx + cx 2)
A polynomial P(v) with all terms having degree n is homogeneous as P(Av) = AnP(v) for all vectors v and scalars A. A differential equation of the form dy/dx = M(x,y) / N(x,y) is homogeneous if M and N are homogeneous of the same degree. Proof: Let M and N be both homogeneous polynomials of degree K.