Question

give me answer
find the following products

Answer 1

Answer:

Use

$(a + b)(a - b) = {a}^{2} - {b}^{2} \\ here\\ a = \frac{1}{5x} \: \: and \: \: b = \frac{3}{2y} \\ \\ = ( \frac{1}{5x} ) { }^{2} - {( \frac{3}{2y}) }^{2} \\ \\ = \frac{1}{25 {x}^{2} } - \frac{9}{4 {y}^{2} }$