Math, asked by arinjain, 1 year ago

factorise (l+m)²-(l-m)²

arinjain: method

Answers

Answered by KanikAb

66

use the formula of (a+b)^2
check out the picture

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Answered by Eknoor0408

29

l²+m²+2lm-(l²+m²-2lm)
l²+m²+2lm-l²-m²+2lm
2lm+2lm
4lm

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