Question

factorise is fast
(l+m)^2 - 4lm​

Answer 1

Step-by-step explanation:

(l+m)^2-4lm

l^2+m^2+2lm-4lm

l^2+m^2-2lm

(l-m)^2

(l-m) (l-m)

I think answer should be

Answer 2

( l + m )² - 4lm

= l² + m² + 2lm - 4lm

{ => ( a + b )² = a² + b² + 2ab }

= l² + m² - 2lm

= ( l - m )²

hope it helps....!!!

mark me brainliest....!!!!