Question

if m+n=16 and mn=7 find m2+n2

Answer 1

Hey

Here is your answer,

Given that,

m+n = 16
mn = 7

By using the identity ( m+n )^2 = m^2 + n^2 + 2mn

( m+n )^2 = m^2 + n^2 + 2mn
m^2 + n^2 = (m+n)^2 - 2mn
m^2 + n^2 = (16)^2 - 7
= 256 - 7
= 249

Hope it helps you!

Answer 2

Answer:

The answer is quite easy, it is 256

Step-by-step explanation:

m+n=16

m^2+n^2=(m+n)^2

(m+n)^2=16^2=256