Question

if x + y = 6 and x - y = 4,find ,(i) x²+y² and (ii)xy.
answer is (i) 26 and (ii) 5

please give me the proper
solution of this question please ​

Answer 1

Step-by-step explanation:

(x+y) ²=x²+y²+2xy

(6)²=x²+ y²+2xy

(x-y) ²= x²+y²-2xy

(4)² = x² + y² -2xy

add

36 = x² +y²+2xy

16=x²+y²-2xy

52 =2(x²+y²)

26 = x²+y²

(x-y) ² =x²+y²-2xy

16 = x²+y²-2xy

2xy =26-16

xy =10/2

xy =5

Answer 2

Answer:

this is the answer with solutions .

Step-by-step explanation:

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