(2m-1)(m+3)=302m²+6m-m-3-30=02m²+5m-33=0(2m+11)(m-3)=02m+11=0m-3=0m1=-11/2m2=3
2m^2+5m-33=0(m-3)(2m+11)=0m1=3, m2=-11/2