bueno

1. Reduce:
 8x2y2z2 + 13x2y2z2 + 26x2y2z2 + 13x2y2z2
 8yz2 + 7zy2 + 2xyz + 5zy2 + 9yz2 + 15xyz
 {12xy2 + 8yx2 + [(7x2y + 4yx2) + (9xy2 +
5xy2)]}
 a3b4c5 + 12b3c4a5 + 23c3a4b5 – 75b3c4a5 +
26a3b4c5 – 40c3a4b5

2. Sean:
A = –8x4 + 5x3 – 3x – 7
B = 5x3 + 7x2 – 4x + 6
C = 8x3 + 9x2 + 7x – 8
Calcula:
1) A + B 3) A + C
2) (A + B) + C 4) (A + B) + (B + C)

3. Se tienen:
F = 5(x2 + 2xy2 – 7y2)
G = (y2 + 7x2y + x2)
H = 4(x2y2 + 3x2y + 9xy2)
Halla:
G + H
4(F + G)
3(F + H) – 6H