Question

brainliest for right answer reported if wrong, try to have explaination as well
If m+n=4 ,mn=3 then the value of m2+n2 is

Answer 1

Answer:

10

Step-by-step explanation:

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

4^2 = m^2 + n^2 + 2×3

16 - 6 = m^2 + n^2

m^2 + n^2 = 10

Answer 2

m + n = 4

mn = 3

(m + n)² = m² + n² + 2mn

4² = m² + n² + (2 × 3)

16 = m² + n² + 6

m² + n² = 16 - 6

m² + n² = 10