A- and shut the door. A propositional phrase is described as "a modifying phrase consisting of a preposition and its object.", and that seems like the closest related answer based on the description.
Although, I'm not 100% sure on the answer, just giving an educated guess. (:
Answer:
Step-by-step explanation:
10x²+x-2=1/2(5x-2)h
10x²+5x-4x-2=1/2(5x-2)h
5x(2x+1)-2(2x+1)=1/2(5x-2)h
2(2x+1)(5x-2)=(5x-2)h
h=[2(2x+1)(5x-2)]/(5x-2)
h=2(2x+1),5x-2≠0,x≠2/5