But what did the passages in Egyptian mean? Did they contain exactly the same message as the Greek passage? The last sentence of the Greek text said, “This decree shall be inscribed on a stela [slab] of hard stone in sacred [hieroglyphic] and native [demotic] and Greek characters,” so it seemed clear that the inscription was the same in all three languages. That way, the priests’ statement could be read by Egyptians who understood Greek, as well as by those who knew only one or both of the Egyptian languages. But the scholars were still far from being able to decipher either the hieroglyphs or the demotic writing. —The Riddle of the Rosetta Stone,
James Cross Giblin

Based on the passage, why was it so important that the scholars figured out that the inscription was the same in all three languages on the stone?

In the passage it states " That way, the priests’ statement could be read by Egyptians who understood Greek, as well as by those who knew only one or both of the Egyptian languages." This meant that the inscription was so important to be in all three languages because that way the priests' and all those who only knew one language of the Egyptians could understand the Egyptians' reading in Greek as a translator. This way they could figure out what the passage meant in Egyptian by translation it.

Sample response:

It was an important discovery because they would be able to compare the inscription they could translate with the hieroglyphs. This ability would allow them to find the hieroglyphs that meant the same thing as the words they knew.

which speech are you talking about?

b. our party quickly made its way into the cave / but we failed to find our host [the cyclops] himself inside.