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2) 12x +5xy + 8x²=x(12+5y+8x)
3)5a² +15a +20a³=5a(a+3+4a^)
4)8a³-4a²-8a+4 =4(2a do 3-a^-2a+1)
5)-3k-6k³-18klm =-3k(1+2k^+6lm)
6)-0,25x-0,7a²+10abc =-1(0,25x+0,7a^-10abc)
7)10x⁴+50x²-100x³ =10x (1 + 5x -10x^)
^--do kwadratu
2) x (12 + 5y + 8x)
3) 5a (a + 3 + 4a kwadrat)
4) 4 (2a do trzeciej - a kwadrat -2a +1)
5) -3k (1 + 2k do drugiej + 6lm)
6) bez zmian
7) 10x (1 + 5x -10x kwadrat)