1)b^1\6(b^1\6-4)-(b^1\6-2)^2= 2)(b^1\8-c^1\4)(b^1\8+c^1\4)-(5b^1\8+2c^1\4)(3b^1\8-4c^1\4)=

1) b^1\\6 * b^1\\6 - 4 * b^1\\6 - (b^1\\6 - 2) * (b^1\\6 - 2) = b^1\\6 * b^1\\6 - 4 * b^1\\6 - b^2\\6 + 2 * b^1\\6 + 2 * b^1\\6 - 4 = b^(1\\6 + 1\\6) - 4 * b^1\\6 - b^1\\3 + 4 * b^1\\6 - 4 = b^1\\3 - b^1\\3 - 4 = -4;

Ответ: -4.

2) (b^1\\8)^2 - (c^1\\4)^2 - 15 * b^2\\8 + 20 * c^1\\4 * b^1\\8 - 6 * c^1\\4 * b^1\\8 + 8 * c^2\\4 = b^1\\4 - c^1\\2 - 15 * b^1\\4 + 14 * c^1\\4 * b^1\\8 + 8 * c^1\\2 = - 14 * b^1\\4 + 14 * c^1\\4 * b^1\\8 + 7 * c^1\\2;

Ответ: - 14 * b^1\\4 + 14 * c^1\\4 * b^1\\8 + 7 * c^1\\2.