Question

(l+m)2- (l-m)2 factories​

Answer 1

Answer:

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

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

2l+2m-2l+2m

2m+2m

4m

Answer 2

Step-by-step explanation:

l+m2-l-m2=

lm2+lm2=lm4=4ml