Question

Rozwiąż zadanie w załączniku , DAM NAJ

Answer 1

(a+b)(a-b)=a² - b²

(5x+1/2y)(5x-1/2y) = 25x² - 1/4y²

(3/2x-y)(3/2x+y) = (9/4y² - y²)

(3/7a+2/3b)(2/3b-3/7a) = 4/9b² - 9/49a²

(11x-1/2z)(11x+0,5z) = 121x² - 1/4z²

(4/3z+4/5a)(4/3z-4/5a) = 16/9z² - 16/25a²

(10a-8b)(8b+10a) = 100a² - 64b²