oblicz (2x-1)²-(4x+1)·(x-2)=
4x²-4x+1-(4x²-8x+x-2)=-4x+7x+1+2=3x+3
(2x-1)²-(4x+1)·(x-2)=4x²-4x+1-(4x²-8x+x-2)=4x²-4x+1-4x²+8x-x+2=3x+3
Pozdrawiam :)
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4x²-4x+1-(4x²-8x+x-2)=-4x+7x+1+2=3x+3
(2x-1)²-(4x+1)·(x-2)=4x²-4x+1-(4x²-8x+x-2)=4x²-4x+1-4x²+8x-x+2=3x+3
Pozdrawiam :)