Question

factorise the following expression l + M whole square - 4 LM

Answer 1

i unable to give the answer please write in proper way

Answer 2

(l+ m ) whole square -4lm

it is in the form of (a+ b) whole square so the formulae is a square +b square + 2ab so

a = L

b = m so

l square + m square +2 ×l×m so 2lm

so L square + m square +2lm-4 lm

(l square + m square -2lm )

so it will be formulae of (a+b) square it will be (l+m)square