Question

x=-1,y=2
x2-2xy+y2

plz answer this question quickly ​

Answer 1

Answer:

x= -1. y= 2

Step-by-step explanation:

-1(2) -2 (-1)(2) +2(2)

-2 -2 (-2) +4

-2 -2 +2

ans = -2

Answer 2

Answer:

$x ^{2} - 2xy + y { }^{2} \\ putting \: x = - 1 \: and \: y = 2 \\ = ( - 1) {}^{2} - 2( - 1)(2) + (2) \\ = 1 + 5 + 2 \\ = 8$