Question

Factorise the term 25m^2-(4n+3l)^2

Answer 1

25m² - (4n + 3l)²
= (5m)² - (4n + 3l)²
use, x² - y² = (x - y)(x + y)
= ( 5m -4n + 3l)(5m + 4n + 3l)

Answer 2

___________________________

25m² - (4n + 3| )²

= (5m)² - ( 4n + 3l )

( :- Use Algebraic identity a² - b² = ( a - b ) ( a + b ) )

Now putting

( 5m - 4n + 3l ) ( 5m + 4n + 3l)