Question

Find the value of
l+m, if l-m =3,lm =7​

Answer 1

Answer:

square root of 37

Step-by-step explanation:

(l+m)^2

=( l-m)^2 + 4lm

=( 3)^2 + 4×7

= 9+28

= 37

therefore,

(l+m) = square root of 37