Ответ:

(х-у)(х+у)=х²-у²

(2х-1)(2х+1)=4х²-1

(8с+9d)(8c-9d)=64c²-81d²

(1-3k)(1+3k)=1-9k²

(a²-3)(a²+3)=a⁴-9

(y-a²)(y+a²)=y²-a⁴

(b³-c)(b³+c)=b⁶-c²

(m²-p³)(m²+p³)=m⁴-p⁶

(5a⁸-6x³)(5a⁸+6x³)=25a¹⁶-36x⁶

(5x²+2y³)(5x²-2y³)=25x⁴-4y⁶

Объяснение: