Question

Calcule o Perímetro exercício 5

Answer 1

P  = 2*(3x+8) +2*(3x-8)
P  =6x +16 +6x -16
P = 12x
A = (3x+8)*(3x-8)
A = 9x^2 -24x+24x-64
A = 9x^2-64

P = 4*(4x+7)
P = 16x +28
A = (4x+7)^2
A = 16x^2 +56x+49