Question

l²+m²+2ml-4
simplify the identity

​

Answer 1

Answer:

(l+m)^2 - 4

Step-by-step explanation:

Answer 2

Answer:

First, this question is for a²+b²+2ab.

so, {(l)²+(m)²+2×l×m} - (2)²

(l+m+2) (l+m-2)