perímetro = (x + 2) • 4
perímetro = 4x + 8
area = (x + 2) (x + 2)
area = x² + 2x + 2x + 4
area = x² + 4x + 4
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perímetro = (x + 2) • 4
perímetro = 4x + 8
area = (x + 2) (x + 2)
area = x² + 2x + 2x + 4
area = x² + 4x + 4