Question

Factorise
(l+m)²-41m
​

Answer 1

( l + m )² - 4lm

using ( a + b )² formula

l² + 2 x l x m + m² - 4lm

l² + 2lm + m² - 4lm

l² + m² - 2lm

This is in the formula ( a - b ) ²

So , Answer ➡ ( l - m ) ²

Answer 2

(a+b)²-4lm

l²+2×l×m+m²-4lm

l²+2lm+m²-4lm

l²+m²-2lm

(l-m)²