Question

(8-2y)²=
(25xy+1)²=
(9a-8b)²=
(x+3)²=
(4ab+8)²=
(7a-b4)²=

Answer 1

2 (4 - у)^2=64 -32у + 4у^2
625(ху)^2 + 50 ху + 1
81а^2 - 144аb - 64b^2
x^2 + 6x + 9