wyrażenia algebraiczne wykonaj działania 1.(x+3)do kwadratu-2(x-1)(x+2)(x+3) 2.(x-3)do kwadratu-2(x-2)do kwadratu(x-1) 3.(2x-2)do 3-(x+1) do 3 4>(3x-1)do 3+2(5-1)(x+3)do kwadratu na rano prosze bo dostane gonga
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zad 1
(x+3)²-2(x-1)(x+2)(x+3)=x²+6x+9-2(x²+x-2)(x+3)=
=x²+6x+9-2(x³+2x²-2x+3x²+3x-6)=x²+6x+9-2(x³+5x²+x-6)=
=x²+6x+9-2x³-10x²-2x+12=-2x³-9x²+4x+21
zad 2
(x-3)²-2(x-2)²(x-1)=x²-6x+9-2(x²-4x+4)(x-1)=
=x²-6x+9-2(x³-4x²+4x-x²-4x-4)=x²-6x+9-2x³+10x²+8=-2x³+11x²-6x+17
zad 3
(2x-2)³-x+1=8x³-24x²+24x-8-x+1=8x³-24x²+23x-7
zad 4
chyba brakuje x w drugim od końca nawiasie.