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Help binomial expansion

Help I’ve never seen q like this before and don’t understand the logic/ working behind it…Can someone plz walk me through this plzIMG_2063.jpegIMG_2064.jpeg
(edited 1 year ago)
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Original post by SupremeMemer
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Sos forgot to attach but it’s there now plz help
Original post by Alevelhelp.1
Sos forgot to attach but it’s there now plz help

Which part are you stuck on - all of it?
Well, though the instruction says not to carry out the calculations, how about you do it anyway? That's my hint, really.

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