Question

The value of x2-2yx+y2 when x =1 and y=2​

Answer 1

Answer:

Value of x²-2xy+y² == (1)²-2(1)(2)+(2)²= 5-4=1

Alternative:: x²-2xy+y² = (x-y)² = (1-2)²= 1

Answer 2

Answer:

1 is the answer

Step-by-step explanation:

x^2-2xy+y^2

=1^2-2(1)(2)+2^2

=1-4+4

=1