Преобразуйте в многочлен:
(c-b)^2
(p-q)^2
(b+4)^2
(-2-a)^2
(0,3-y)^2

(c-b)^2 = c^2-2bc+b^2(p-q)^2 = p^2-2pq+q^2(b+4)^2 = b^2+2*4*b+4^2 = b^2+8b+16(-2-a)^2 = (a+2)^2 = a^2+2*2*a+2^2 = a^2+4a+4(0.3-y)^2 = 0.3^2-2*0.3*y+y^2 = y^2-0.6y+0.09