multiplicacion de polinomios
1. (a-b)×(a²+ab+b²)
2. (c+d²)×(c²-cd²+d⁴)
3.(2x-p³)×(2x+p³)
4. (5x-d³)×(5x-d³)
5. (2x-3)×(x+4)×(x-1)
6. (3x+y)×(3x+y)
7. (w+5)×(w+5)×(w+5)