October 2018 1 24 Report

Wykonaj mnożenie i zredukuj wyrazy podobne.

I. (3x+2)(3x-2)+2x "do potęgi drugiej"
II. (-5a-7)(3a+b) + a "do potęgi drugiej" -b= -14___-_____a-_____b-_____ab
III. (-8a - 4)(-3a-9) -11a + a "do potęgi drugiej"


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