Question

(l+m)²-4lm please tell me i am so tensed about it​

Answer 1

Answer:

sᴇʟᴇᴄᴛ ᴅᴏᴄᴜᴍᴇɴᴛ > ʜᴇᴀᴅᴇʀ & ғᴏᴏᴛᴇʀ > ᴀᴅᴅ... ɪɴ ᴛʜᴇ ᴀᴅᴅ ʜᴇᴀᴅᴇʀ ᴀɴᴅ ғᴏᴏᴛᴇʀ ᴛᴏᴏʟ, sᴘᴇᴄɪғʏ ᴛᴇxᴛ ᴀɴᴅ ғᴏʀᴍᴀᴛs ғᴏʀ ʜᴇᴀᴅᴇʀs ᴀɴᴅ ғᴏᴏᴛᴇʀs ɪɴ ʏᴏᴜʀ ᴅᴏᴄᴜᴍᴇɴᴛ. ᴜsᴇ ᴛʜᴇ ᴘʀᴇᴠɪᴇᴡs ᴛᴏ ᴍᴀᴋᴇ sᴜʀᴇ ᴛʜᴇ ᴛᴇxᴛ, ғᴏɴᴛs, ᴀɴᴅ ʟᴀʏᴏᴜᴛ ᴀʀᴇ ᴀs ʏᴏᴜ ᴡᴀɴᴛ ᴛʜᴇᴍ ғᴏʀ ʏᴏᴜʀ ᴅᴏᴄᴜᴍᴇɴᴛ.

Answer 2

Answer:

(l+m)²-4lm

= l² + 2lm + m² - 4lm

= l² - 2lm + m²

= (l-m)² = (l-m)(l-m)