Question

Show that (5x -3y)² + 30xy = 25x² + 9y²​

Answer 1

Answer:

by using identity : (a + b)² = a² + b² + 2ab

Answer 2

Step-by-step explanation:

$( {5x - 3y)}^{2} + 30xy =$

$25 {x }^{2} - 30xy + 9 {y }^{2} + 30xy$

=

$25 {x }^{2} + 9 {y}^{2}$