Question

Evaluate the expression 2xy -y2 when x=1 and y=1

Answer 1

Answer:

2xy - y²

2(1)(1) - (1)²

2 - 1= 1 is the answer

Answer 2

Answer:

2xy-y² when x=1,y=1

=2×1×1-1²

=2-1

=1 ans.