Question

solve the following
(l+ m)2 – 4lm = ?​

Answer 1

after solving we will get zero

hope it will help u

Answer 2

Step-by-step explanation:

(l+m)2- 4lm =

2l +2m -4lm

send that side it becomes -(minus)

then ,2l=4lm -2m (4lm = 4×l×m)

2l = 4×l×(-m)

send 2 that side ,l = 4× l× (-m)/2

send l to left side, 2l = 4×(-m)/2= 2×(-m)

l = 2×(-m)/2= -m

l = -m

I don't know exactly bit hope this is useful

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