Question

If mn = 16 and m^2 + n^2 = 68 then (m+n)^2 =

Answer 1

Answer:

B.   100

Step-by-step explanation:

(m + n)^2

= m^2 + 2mn + n^2

Rearrange

(m^2 + n^2) + 2mn

Substitute

(68) + 2*16

= 68 + 32

= 100