Question

for x = 5 and y = 2 then what is the value of (x+y)² = x² + 2xy + y²​

Answer 1

Answer:

x+y = 5+ 2 = 7

${(x + y)}^{2}$

${7}^{2}$

49

Answer 2

Answer:

If x = 5 and y = 2  then  (x + y)² = x² + 2xy + y²​ = 49.

Step-by-step explanation:

Given: x = 5 and y = 2  

Find the value of (x + y)² = x² + 2xy + y²​

Put x = 5 and y = 2  in (x + y)² = x² + 2xy + y²​

(x + y)² = (5 + 2)² = (7)² = 49

x² + 2xy + y²​ = (5)² + 2(5)(2) + (2)²

= 25 + 20 + 4

= 25 + 24

= 49

So, (x + y)² = x² + 2xy + y²​ = 49