ohlanana (9+a)^2=81+18a+a^2
(8-b)^2=64-16b+b^2
(3y-4)^2=9y^2-24y+16
(5a+6b)^2=25a^2=60ab+36b^2
(a-y^3)^2=a^2-2ay^3+y^6
(a+c)^2=a^2+2ac+c^2
(11-y)^2=121-22y+y^2
(10+4c)^2=100+80c+16c^2
(-3c+a)^2=a^2-6ac+9c^2
(a^2+b^2)^2=a^4+2a^2b^2+b^4