Question

упростите выражение 15y3-(3y2-2)(5y-1)+2

Answer 1

15y³-(3y²-2)(5y-1)+2=15у³-15у³+3у²+10у-2+2=3у²+10у

Answer 2

$15y^3-(3y^2-2)(5y-1)+2=15y^3-15y^3+3y^2+10y-2+2= \ =3y^2+10y=y(3y+10)$