а) 4х²-6−5х6-5х6−5х = 4х²-−(5x−6)-(5x-6)−(5x−6) = 4х²+5х−65х-65х−6
б) 6х+−3х+4-3х+4−3х+4 = 6х+−(3х−4)-(3х-4)−(3х−4) = 6x-3x−43x-43x−4
а) 4х²-6−5х6-5х6−5х = 4х²-−(5x−6)-(5x-6)−(5x−6) = 4х²+5х−65х-65х−6
б) 6х+−3х+4-3х+4−3х+4 = 6х+−(3х−4)-(3х-4)−(3х−4) = 6x-3x−43x-43x−4