(5а+1)²=(5а+1)(5а+1)=25а²+10а+1
(3у+4)²=(3у+4)(3у+4)=9у²+24у+16
(10+4с)²=(10+4с)(10+4с)=100+80с+16с²
(2х-3у)²=(2х-3у)(2х-3у)=4х²-12ху+9у²
(-3с+а)²=(-3с+а)(-3с+а)=9с²-6са+а²
(а²-3)²=(а²-3)(а²-3)=а⁴-6а²+9
(a-y³)²=(a-y³)(a-y³)=а²-2у³а+у⁶
(a²+b)²=(a²+b)(a²+b)=а⁴+2а²b+b²