Question

a
$(a + b + c) {}^{2}$

Answer 1

hiii!!!

here's ur answer...

>> ( a + b + c )² = a² + b² + c² + 2ab + 2bc + 2ac

for example :-

( 2 + 4 + 6 )²

here a = 2, b = 4 and c = 6

>> (2)² + (4)² + (6)² + 2 (2) (4) + 2 (4) (6) + 2 (2) (6)

= 4 + 16 + 36 + 16 + 48 + 24

= 144

hope this helps..!!

Answer 2

ʜʏ ᴅᴇᴀʀ ʜᴇʀᴇ ɪs ʏᴏᴜʀ ᴀɴsᴡᴇʀ
________________________

(ᴀ+ʙ+ᴄ)②
=> ᴀ^②+ʙ^②+ᴄ^②+②ᴀʙ+②ʙᴄ+②ᴄᴀ

ᴏʀ 

=> ᴀ^②+ ʙ^②+ ᴄ^②+ ②( ᴀʙ+ʙᴄ+ᴄᴀ)

ʜᴏᴘᴇ ɪᴛ ᴍᴀʏ ʜᴇʟᴘ ʏᴏᴜ☺️