November 2018 1 20 Report

Rozwiąż przykład wzorami skróconego mnożenia

(2x+1)² - (3x+1)² · (3x-1) - (2x-3)² =

Tu macie wzory wrazie potrzeby :

1) (a+b)²= a² + 2ab +b²

2) (a-b)² = a² - 2ab + b²

3) (a+b)(a+b) = a² - b²

KTO 1 DAM NAJ


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