Question

what should be added to x square + 2 x y + Y square to get 4 x y + Y square​

Answer 1

Answer:

Since, (√2+√3)2 and √6 are irrational numbers,

And, √2 =1.414 and √3 = 1.732

So, the rational number lying between √2 =1.414 and √3 is 1.6 .

Hence, the correct option is (c).

Answer 2

Answer:

x²+2xy+y² + [ ] = 4xy

[ ]= 4xy + y² – x²–2xy–y²

[ ] = 2xy–x²