Question

if X + Y = 12 and xy = 14 find the value of x2 + y2

Answer 1

Hey mate!!!

Here's ur answer dear :)

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Given : x + y = 12 and xy = 14

Now,

(x + y)² = x² + y² + 2xy


==> (12)² = x² + y² + 2 × 14

==> 144 = x² + y² + 28

==> x² + y² = 144 - 28

==> x² + y² = 116

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Thanks for the question!!

♥♥♥

Answer 2

ʜᴇʏᴀ!!

ʜᴇʀᴇ's ʏᴏᴜʀ ᴀɴsᴡᴇʀ

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ɢɪᴠᴇɴ , ( x + ʏ ) = 12 ᴀɴᴅ xʏ = 14

ɴᴏᴡ , 

x^2 + ʏ^2

= ( x + ʏ )^2 - 2xʏ

= ( 12 )^2 - 2 × 14

= 144 - 28

= 116

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ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ʏᴏᴜ ᴅᴇᴀʀ! :)

★ ᴅᴇᴠɪʟ ᴋɪɴɢ