Question

(2x+y)(5x-3y)-(x+y)(5x-3y)

Answer 1

Refer to the attachment please.

Answer 2

Hey Mate,

Given,

$( 2x + y )( 5x - 3y ) - ( x + y )( 5x - 3y )$

= $( 10x^{2} - 6xy + 5xy - 3y^{2} ) - ( 5x^{2} - 3xy + 5xy - 3y^{2} )$

= $10x^{2} - 6xy + 5xy - 3y^{2}  - 5x^{2} + 3xy - 5xy + 3y^{2}$

= $10x^{2} - 5x^{2} - 6xy + 5xy + 3xy - 5xy - 3y^{2} + 3y^{2}$

= $5x^{2} - 3xy$

Therefore,

$5x^{2} - 3xy$ is the final answer for :-

$( 2x + y )( 5x - 3y ) - ( x + y )( 5x - 3y )$

Hope it Helps!