Respostas

2014-07-01T15:45:00-03:00
(m²n³ + m³n²)² = m⁴n⁶  + 2m⁵n⁵ + m⁶n⁴

(3b - 1)² = 9b² - 6b + 1

(x - 2x³)² = x⁴ - 4x⁵ + 4x⁶
1 3 1