Question

Помогите с 1 номером с б и в прошу умоляю

Answer 1

б) = 72x^3y / z * 1/30x^2y = 12x/z * 1/5 = 12x/5z

в)= x^2-1/x^2-9*x-1/5x+10 = (x^2-1)(x-1)/(x^2-9)(5x+10) = x^3-x^2-x+1/5x^3+10x^2+45x-90

Answer 2

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