A) (x ^ - 4 - x ^ 2 + x ^ - 1) / (x ^ - 1) 6) (a * x ^ 2 + bx) * x ^ - 2 ; в) (a * x ^ - 3 - b * x ^ - 1) / (x ^ - 4) r) (a ^ - 4 + a ^ - 2 * b ^ - 1 + a * b ^ - 2 - a ^ 0 * b ^ - 3) * a ^ 4 * b ^ - 4

a) (x ^ - 4 - x ^ 2 + x ^ - 1) / (x ^ - 1) = x^-4 - x^2 * x^-1 + x^-1 * x^-1 = x^-4 - x^2 * x^-1 + x^-2 = 1/x^4 - x + 1/x^2

в) (a * x ^ - 3 - b * x ^ - 1) / (x ^ - 4) = (a * x^-3) / x^-4 - (b * x^-1) / x^-4 = (a * x) * x - (b * x^3) = a * x^2 - b * x^3

r) (a ^ - 4 + a ^ - 2 * b ^ - 1 + a * b ^ - 2 - a ^ 0 * b ^ - 3) * a ^ 4 * b ^ - 4 = (1/a^4 + 1/a^2b + ab^-2 - 1/b^3) * a^4 * b^-4 = (1/a^4 + 1/(a^2b) + ab^-2 - 1/b^3) * (a^4 / b^4) = (1 + a^2 / b + a^5b^-2 - a^4b^-7) / b^4