Question

Factorise by Splitting method
(l+m)²-4lm
Precise answer will be accepted
If someone spam then I will report his/her answer. Remember that solve by Splitting method not by identities or any other method.​

Answer 1

(l+m)^2 - 4lm

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

=> l^2 +m^2 - 2lm

=> l^2 + m^2 - 2(l)(m)

=> (l-m) ^2

Answer 2

$\huge \star \mathfrak \red{Answer!!}$

ii)  (l + m)² – 4lm

               = l² + 2lm + m² – 4lm

               = l² – 2lm + m²

               = (l – m)²

⠀⠀⠀⠀⠀‍‍‍‍‍‍= (l – m)(l – m)

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