Question

If (m - n) = 3 and mn = 4, find m² + n². with process

Answer 1

Answer:

17

Step-by-step explanation:

(m - n) = 3,mn = 4

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

or,m^2 + n^2 = (3)^2+2×4

or,m^2 + n^2 = 9+8

or,m^2 + n^2 = 17