February 2019 0 7 Report
Wzory skróconego mnożenia. Sprowadź do najprostszej postaci i oblicz wartości liczbowe:
a) (3x-1)²- 9x - (3x-1) (3x+1) = dla x= -1/5
b) 2(2a-3b)² - 3(a-2b)(a+2b)+12ab= dla a=3√6 b= -√2
daje naj ;)
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