Question

pls solve this question 11​

Answer 1

Answer:

(x + y) ² = x² + y² + 2xy

Step-by-step explanation:

i) ( x + y)² = 13 + 12

= 25

= x+ y = 5

ii ) (x- y)² = (x + y)² - 4xy

= 25 - 24

= 1

i.e. x- y = 1

hope it helps you