Question

(l+m)²-(l-m)²

Factorise pls

I'll mark the correct answer as brainliest​

Answer 1

Answer:

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Answer 2

Answer:

"(l + m)2 - (l -m)2 = l2 + 2lm + m2 - (l2 - 2lm + m2)

= l2 + 2lm + m2 - l2 + 2lm - m2

= 2lm + 2 lm

= 4 lm "