Question

x = 5 , y = ? x×x + y×y + 3 xy​

Answer 1

Step-by-step explanation:

let y be y

(5*5)+(y*y)+3*5*y

25+y^2+15y

y^2+15y+25

Answer 2

Answer:

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Step-by-step explanation:

Given:

x+y=5, and

x=3

Substituting the value of x in the given equation, we get

3+y=5

⇒y=2