4х²-1-1х+0.75=4х²-1х-0.25=4×(1.25)²-1.25-0.25=6.25-1.25-0.25=4.75
4х²-1-1х+0.75=
4х²-1х-0.25=
4×(1.25)²-1.25-0.25=
6.25-1.25-0.25=4.75
4х²-1-1х+0.75=4х²-1х-0.25=4×(1.25)²-1.25-0.25=6.25-1.25-0.25=4.75
4х²-1-1х+0.75=
4х²-1х-0.25=
4×(1.25)²-1.25-0.25=
6.25-1.25-0.25=4.75