Pomóżcie! 1). x – 5 = - 2 x + 17 2). x2(to jest x do kwadratu) = 9 3). 2 (x – 1) = x + 3 4). x ( x – 1) ( x – 2 ) = 0 5). x2 (to jest x do kwadratu)+ 8 = 6x 6). /x/=4 7). /x/ = x 8). /x – 2/ = 5
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1 3x=22/
x=7,333
2 x2=9 pod piwrwiastkiem
x = 3
3 2x-2=x+3+4
3x=9/3
x=3
4 - x kwadrat - 1x-x kwadrat - 2x=0,5