Zapisz w postaci jak najprostszej sumy algebraicznej.
2a do kwadratu -(a+6) (2a - 1) =
3( x do kwadratu - 1) - (x-3) (x+2)=
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2a do 3 +12a+2a -1= 2a do 3+14a +2
3x do kwadratu -3-x+3+x+2= 3x do kwadratu -1
2a do kwadratu -(a+6) (2a - 1) = 2d do kwadratu- 2a do kwadratu - 1a12a+6=11a+6
3( x do kwadratu - 1) - (x-3) (x+2)=3x do kwadratu-3-x do kwadratu+2x-3x-6=1x-9
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