5n²-2n-4n²+40n/8=
8m²-10/2-20m²+15/2=
3x²+4+1/7 ( UŁAMEK )*14x²-21/6=
15p²-9p/6-6*1-6p/4=
5n²-2n - 4n²+40n/8= n²+3n
8m²-10/2-20m²+15/2= 8m²-5-20m²+7,5= -12m²+2,5
2x²+4+1/7*14x²-21/6=2x²+4+2x²-2,5= 4x²+1,5
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5n²-2n - 4n²+40n/8= n²+3n
8m²-10/2-20m²+15/2= 8m²-5-20m²+7,5= -12m²+2,5
2x²+4+1/7*14x²-21/6=2x²+4+2x²-2,5= 4x²+1,5