Question

Add the two expressions (x2 + 2xy + y2) and (x2 – 2xy + y2) and find the
value of the sum if x = 2, y = 5.​

Answer 1

Answer:

Ans is 58

Step-by-step explanation:

(x2+2xy+y2)+ (x2-2xy+y2) when x=2, y=5

or x2+2xy+y2+x2-2xy+y2

or 2x2+2y2

or 2×2^2+2×5^2

or 2×4+ 2×25

or 8+ 50

or 58.

thank you.

Answer 2

Answer:

58

Step-by-step explanation:

Given: x= 2 and y= 5

Solution: x²+2xy+y²+x²-2xy+y²

= x²+x²+y²+y²+2xy-2xy

= 2x²+2y²+0

substitute these value in the given equation

= 2×(2)²+2×(5)²

= 2×(4)+2×(25)

= 8+50

= 58

Correct explanation

hope you understand