Question

What is the value of m2-2mn+n2 for m=-2 and n=4

Answer 1

M2 -2mn + n2 = 4 - (-16) + 16 = 20 + 16 = 36 Have a nice days.......

Answer 2

Answer:  The required value is 36.

Step-by-step explanation:  We are to find the value of the following expression for m = -2 and n = 4 :

$m^2-2mn+n^2.$

Substituting the values m = -2 and n = 4 in the given expression, we get

$m^2-2mn+n^2\\\\=(-2)^2-2\times (-2)\times 4+4^2\\\\=4+16+16\\\\=36.$

Thus, the required value is 36.