Question

If x= -1 and y = -2 , find the values of the following expression.

x2 – xy + y2​

Answer 1

Answer:

3 // Ans mark me as brainliest

Step-by-step explanation:

x=-1, y=-2

so,

x²-xy+y²

=(-1)²-(-1)(-2)+(-2)²

=1-2+4

=5-2=3 // Ans

Answer 2

Answer:

3

Step-by-step explanation:

on putting given values in expression we get

(-1^2)-(-1x-2) +(-2^2)

= 1 -(+2)+4

=1-2+4

=5-2

= 3