Question

Please help it's urgent ​

Answer 1

hello! the answer is 12

Answer 2

Answer: xy=12

Step-by-step explanation:

first break the eqn. (x+y)²=64

x²+2xy+y²=64--------(i)

now, break the second..(x-y)²=16

x²-2xy+y²=1116--------(ii)

(i)-(ii)

⇒x²+2xy+y²-x²+2xy-y²=64-16

⇒4xy=48

⇒xy=12

Thats all!!!