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b)45k²m-36km²+9km=9km(5k-4m+1)
c)5100x(do szóstej)-50x²+50x=50x(102x(do piątej)-x+1)
d)2,5p²-5p+2=2(1,25p²-2,5p+1)
b) 9km(5k-4m+1)
c) 50x(102x do potęgi5-x+1)
d) 0,5(5pdo potęgi2-10p+4)