Question

Which of the following is the expansion of (2x – y) 2? 4 x 2 - 2 xy + y 2 x 2 - 4 xy + 4 y 2 4 x 2 - 4 xy + y 2 x 2 - 2 xy - y 2

Answer 1

Here is the correct answer:

(2x - y)² = 4x² - 4xy + y²