Question

If m = -3 and n = 4; find the value of :  m² + n² - 2mn​

Answer 1

Answer:

Step-by-step explanation:

m² + n² - 2mn​

m = -3 and n = 4

[-3]² + 4² - 2*-3*4

9+16+24

9+40

49

Answer 2

Answer:

=-3×-3+4×4-2×-3×4

9+16+24

=49