решите по формулам
(a-b)²=a²-2ab+b²
(a+b)²=a²+2ab+b²
(a-b)(a+b)=a²-b²
примеры
(2a-3)²=
(5+2p)²=
(3-7p)(3+7p)=
25-9a²=
(4a-5r)²=
(a-b)²=a²-2ab+b²
(a+b)²=a²+2ab+b²
(a-b)(a+b)=a²-b²
примеры
(2a-3)²=
(5+2p)²=
(3-7p)(3+7p)=
25-9a²=
(4a-5r)²=
More Questions From This User See All
Answers & Comments