Question

If x = -1 and y = 1 then value of following algebraic expression will be:
${x}^{2} - {y}^{2}$
​

Answer 1

x²-y²

= (-1)²-1²

= 1-1

=0

or

x²-y²

=(x+y)(x-y)

={(-1)+1}{(-1)-1}

= 0×0

0

Answer 2

Answer:

0

Step-by-step explanation:

x²-y²

(-1)²-(1)²

1-1

0