Misconception about Quran 06: creation eight or six days

Asslamoalykom wa rahmat allah wa barkatoh

A non muslim one asked me your god say that he created heavens and earth in 8 days and in another part 6 days i told him to give me the 8 days verse he give me these verses from the holy quran

Say, "Do you indeed disbelieve in He who created the earth in two days and attribute to Him equals? That is the Lord of the worlds."

And He placed on the earth firmly set mountains over its surface, and He blessed it and determined therein its [creatures'] sustenance in four days without distinction - for [the information] of those who ask.

Then He directed Himself to the heaven while it was smoke and said to it and to the earth, "Come [into being], willingly or by compulsion." They said, "We have come willingly."

And He completed them as seven heavens within two days and inspired in each heaven its command. And We adorned the nearest heaven with lamps and as protection. That is the determination of the Exalted in Might, the Knowing.

quran [41:9-12]

The Answer

Allah created the universe in three stages

1. Big bang
2. Creating earth and heavens
3. Making earth sutable for living

Big bang

The universe was like ball and it exploded

Creating earth and heavens

Allah created earth first in 2 days

then created one heaven in 2 days

then make the one heaven 7 in 2days

Making earth sutable for living

Allah added things that make earth sutable for living like mountains and trees ...ect

Alot will say  2+4+2=8

but this is Wrong

2create earth

and 2 create heavens

make it 7 in 2 days

4 make earth sutable for living

like plant the plants and trees and rain and this until now happens so it doesn't enter the 6  the creation days if we said that growing plants and rain and all these is from creation the earth then the universe until now didn't completed because until know trees grow

so 2+4+2=8 is wrong because 4 is not in the creating universe

Lie answered