Question

If m-not =16 and m2+n2=400, then find mn

Answer 1

m-n = 16, m2 + n2 = 400
(m-n)2 = (m-n)2
m2 + n2 -2mn = (16)2
​400 - 2mn =  256

400 - 265 = 2mn
​135 = 2mn
​135/2 = mn
​mn = 67.5

Answer 2

Answer:

m-n = 16, m2 + n2 = 400

(m-n)2 = (m-n)2

m2 + n2 -2mn = (16)2

​400 - 2mn =  256

400 - 265 = 2mn

​135 = 2mn

​135/2 = mn

​mn = 67.5