(х²-2ху+у²)-у²-3у²=(х-у)²-4у²=(х-у)²-(2у)²=(х-у-2у)(х-у+2у)=(х-3у)(х+у)
(m²+2m*3,5+12,25)-12,25+10=(m+3,5)²-2,25=(m+3,5)²-1,5²=(m+3,5-1,5)(m+3,5+1,5)= (m+2)(m+5)
(х²-2ху+у²)-у²-3у²=(х-у)²-4у²=(х-у)²-(2у)²=(х-у-2у)(х-у+2у)=(х-3у)(х+у)
(m²+2m*3,5+12,25)-12,25+10=(m+3,5)²-2,25=(m+3,5)²-1,5²=(m+3,5-1,5)(m+3,5+1,5)= (m+2)(m+5)