1 ) (5x+4) (2x-1)=
5x+4*2x-1=
5х+8х-1=
13х-1
2) (3p-2c) (2p+4c)
3p-2c*2p+4c
6р-2с
3) (b-2) (b2+2b-3)
b-2*b2+2b-3
5в-5
1 ) (5x+4) (2x-1)=
5x+4*2x-1=
5х+8х-1=
13х-1
2) (3p-2c) (2p+4c)
3p-2c*2p+4c
6р-2с
3) (b-2) (b2+2b-3)
b-2*b2+2b-3
5в-5