Question

L square + M square + M square + N square + N square + L square + 2lm + 2 mn + 2nl​

Answer 1

answer:- hope this helps you (mark brainliest is helpful)

Answer 2

Answer: 2(l²+m²+n²+lm+mn+nl)

Step-by-step explanation:

l²+m²+m²+n²+n²+l²+2lm+2mn+2nl

First we have to put same digits together..

l²+l²+m²+m²+n²+n²+ 2lm+2mn+2nl

Then we have to add same digits...

2l²+2m²+2n²+2lm+2mn+2nl

2 is common in every digit....

2(l²+m²+n²+lm+mn+nl)

Hope it helps.......

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