Question

factorise (l+m2)-(l-m2)​

Answer 1

Answer:

2$m^{2}$

Step-by-step explanation:

solution

(1 + m² )- (1 - m²)

open the bracket

1 + m²- 1 + m²

(+1 ,-1 will b cancle )

so therefor

2 m²