Question

What is the answer to this

Answer 1

$\frac{2x - y}{4x^{2} + 4xy + y^{2}} / \frac{1}{(2x + y)^{2}} = \frac{2x - y}{4x^{2} + 4xy + y^{2}} * \frac{(2x + y)^{2}}{1} = \frac{2x - y}{(2x + y)^{2}} * \frac{(2x + y)^{2}}{1} = \frac{2x - y}{1} = 2x - y$