Question

51. If x+y=9 and xy = 12, then find the
value of x2 + y2​

Answer 1

Answer:

hiiii mate,

your answer is attached with picture..

hope it helps you...✌️✌️

please mark me as braienliest

✳️✳️❇️✳️❇️✳️❇️☺️☺️

Answer 2

If x + y = 9 and xy = 12 then x² + y² = 57

Given :

x + y = 9 and xy = 12

To find :

The value of x² + y²

Formula :

(x + y)² = x² + 2xy + y²

Solution :

Step 1 of 2 :

Write down the given values

Here it is given that x + y = 9 and xy = 12

Step 2 of 2 :

Find the value of x² + y²

(x + y)² = x² + 2xy + y²

⇒ 9² = x² + y² + 2xy

⇒ 81 = x² + y² + ( 2 × 12 )

⇒ 81 = x² + y² + 24

⇒ x² + y² = 81 - 24

⇒ x² + y² = 57

Hence the value of x² + y² = 57

━━━━━━━━━━━━━━━━

Learn more from Brainly :-

$1.$ If a+b=7 and ab=4 and find Value of a² +b²

https://brainly.in/question/28413926

2. if (x+y) =9 and xy=6, find the value of x²+y²

https://brainly.in/question/23257499