Question

Simplifique:
(2x+1)²+(x-5)²=
(x-1)²-(x+1)²=
x(x-3)²-4(x+1/2)²=

Answer 1

24/30 = 24/2 e 30/2 = 12/15 = 12/3 e 15/3 = 4/5
16/36 = 16/4 e 36/4 = 4/9
72/48 = 72/4 e 48/4 = 18/12 = 18/3 e 12/3 = 6/4 = 6/2 e 4/2 = 3/2
27/36 = 27/3 e 36/3 = 9/12 = 9/3 e 12/3 = 3/4