Question

find the expansion of the square 5x+3y​

Answer 1

Answer: have a look at the picture:

Step-by-step explanation:

Answer 2

Using identity ( a+b ) ²

We get ( 5x + 3y )² = 25x² + 9y² + 30xy

Step by step solution

( 5x + 3 y) ² = ( 5x+3y ) ( 5x+3y )

= ( 5x(5x + 3y) + 3y (5x + 3y)

= (25x²+ 15xy + 15xy + 9y²

= 25x² + 30 xy + 9y²