Question

If x and y are non-zero real numbers, such that
x = y and y = 2x, find the value of the product xy.

Answer 1

Answer:

XY = 0.

Step-by-step explanation:

$x = y \: \: \: and \: \: \: y = 2x \\ \\ clearly \: \: \: x = y = 0 \: is \: the \: only \: solution \\ \\ therefore \: \: xy = 0 \times 0 = 0.$