Answer:
-2h²+5h+3=-(2h+1)(h-3)
Step-by-step explanation:
-2h²+5h+3=0
Delta=5²-4×(-2)×3=25+24=49=7²
h1=(-5+7)/(-4)=2/(-4)=-1/2
h2=(-5-7)/(-4)=-12/(-4)=12/4=3
Finally
-2h²+5h+3=-2(h+1/2)(h-3)=-(2h+1)(h-3)
