If x-y = 2 and xy =15 Find the value of x2+y2
Answers
Answered by
8
ʜᴇʏᴀ!!
ʜᴇʀᴇ's ʏᴏᴜʀ ᴀɴsᴡᴇʀ
_____________________
ɢɪᴠᴇɴ , ( x - ʏ ) = 2 ᴀɴᴅ xʏ = 15
ɴᴏᴡ ,
x^2 + ʏ^2
= ( x - ʏ )^2 + 2xʏ
= 2^2 + 2 × 15
= 4 + 30
= 34
sᴏ , ᴛʜᴇ ᴠᴀʟᴜᴇ ᴏғ ( x^2 + ʏ^2 ) ɪs 34.
___________________________
ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ʏᴏᴜ ᴅᴇᴀʀ! :)
★ ᴅᴇᴠɪʟ ᴋɪɴɢ
ʜᴇʀᴇ's ʏᴏᴜʀ ᴀɴsᴡᴇʀ
_____________________
ɢɪᴠᴇɴ , ( x - ʏ ) = 2 ᴀɴᴅ xʏ = 15
ɴᴏᴡ ,
x^2 + ʏ^2
= ( x - ʏ )^2 + 2xʏ
= 2^2 + 2 × 15
= 4 + 30
= 34
sᴏ , ᴛʜᴇ ᴠᴀʟᴜᴇ ᴏғ ( x^2 + ʏ^2 ) ɪs 34.
___________________________
ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ʏᴏᴜ ᴅᴇᴀʀ! :)
★ ᴅᴇᴠɪʟ ᴋɪɴɢ
Similar questions