Question

if m+n = 15 and m^2-n^2= 60. find m-n​

Answer 1

Answer:

4

Step-by-step explanation:

m²-n² = (m+n)(m-n)

Given that,

m²-n² = 60

m+n = 15

=> 60 = 15(m-n)

=> (m-n) = 60/15

=> (m-n) = 4