Question

If x + y = 10 and xy = 24 find value of x² + y²​

Answer 1

( a + b )² = a² +2ab + b²

use the above identity

(x + y)² - 2xy = x² + y²

→ 10² - 2(24) = x² + y²

→ x² + y² = 100 - 48

= 52

Answer 2

Answer:

52

Step-by-step explanation:

(x+y)²=(10)²

=>x²+y²+2xy=100

=>x²+y²+48=100

=>x²+y²=100-48

=>x²+y²=52