Question

resolva:
${m}^{2} - 2mn + {n}^{2}$
quando m= -1 e n=
$\frac{1}{4}$

Answer 1

m²-2mn+n²

-1²-2-1.1/4+1/4^²
1-2-1/4+1/16
4-8-4/4+1/16
-8/4+1/16
-32+1/16
-31/16


MMC
4,16/2
2,8/2
1,4/2
1,2/2
1,1