Question

then find the value of x2 + 5xy + y2
Hint. x2 + 5xy + y2 = (x + y)2 + 3xy.​

Answer 1

Answer:

Here we know that,

[x+y] *2=x*2+2xy+y*2

Step-by-step explanation:

Given that.,

X*2+5xy+Y*2

X*2+2xy+3xy+Y*2

X*2+2xy+Y*2+3xy

So,

[X+Y]*2+3xy