Question

(а-3в)²
(4а+6)²
(х+3у)²
(2х-5)²
36-а²
(3-7у)²

Answer 1

(a-3b)² =a²-6ab+9b²

(4a+6)²=16a²+48a+36

(x+3y)²=x²+6xy+9y²

(2x-5)²=4x²-20x+25

36-a²=(6-a)(6+a)

(3-7y)²=9-42y+49y²