Question

expand the following (2x-y)² using suitable identities​

Answer 1

Answer:

This equation is expanded by the prior formula and I have attached the solution

Answer 2

$(2x-y)^{2} \\(2x)^{2}+(y)^{2}- 2*2x*y\\4x^{2}+y^{2}-4xy$

hope it helps :)))