Not a quote by you but someone as firm a believer as you are:
This at least is vague and subject to interpretation differences.
I have not read the Quran, so I am not qualified to make any comments on it. So I googled some things you said:
Your quote: "We(Allah) have constructed the universe with might, and verily it is we who are steadily expanding it"
Translations found with google:
"With power did We construct the heaven. Verily, We are Able to extend the vastness of space thereof."
The Noble Quran : Surat 51
"And the heaven We constructed with strength, and indeed, We are [its] expander."
Surat Adh-Dhariyat [51:47] - The Holy Qur'an - ?????? ??????
"And it is We Who have constructed the heaven with might, and verily, it is We Who are steadily expanding it. "
Miracles of the Qur'an - Harun Yahya
"With power and skill did We construct the Firmament: for it is We Who create the vastness of pace."
Arabic Quran Surah 51. The Winnowing Winds
"And We have built the heaven with hands (the Divine Power), and it is We Who give the expanse."
QUR'AN CHAPTER 51: ADH-DHARIYAT (THE WINNOWING WINDS)
The first thing which strikes me is, you are the only one using the word universe. Almost everybody else is using the word heaven. Maybe the translation could be the same for heaven and universe (I am also not an arabist), but at the least it is somewhat ambiguise.
But like I said earlier, scientists should not try to prove or disprove holy books nor should believers.
B.t.w. I am not making a scientific argument, this is a discussion forum not college.