French, asked by DarThWadEr, 9 months ago

SI X + y = 8, et XY = 15 trouvez x ^ 2 + y ^ 2.​

Answers

Answered by AdorableMe
18

◙ Il est donné que, ◙

x + y = 8 et xy = 15.

◙ Pour trouver ◙

La valeur de x² + y².

◙ Solution ◙

Nous savons,

x² + y² = (x + y) ² - 2xy

⇒x² + y² = (8) ² - 2 (15)

⇒x² + y² = 64 - 30

\underline{\huge\bold{\boxed{x^2+y^2=34}}}

Answered by gurudeepanraj
0

Answer: i hope it helps

Explanation:

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