(х + у)²

2a(3b +5)
(x + 3)(x +1)
(b – c)(b + c)
(a – 5)2
(m-n)(m2 + mn +n2)

(p-g)²

(c+8)(c+2)
-a(b + 3)
(6 + x) 2
(y+4)(y-4)
(x+y)(x2–xy +y2)