а) y^6 * y = y^7
б) x^9 : x^4 = x^(9-4) = x^5
в) (-4a)^7 = (-4)^7 * a^7 = -16384a^7
г) (x^7 * x) / (x^3)^2 = x^8 / x^6 = x^(8-6) = x^2
а) y^6 * y = y^7
б) x^9 : x^4 = x^(9-4) = x^5
в) (-4a)^7 = (-4)^7 * a^7 = -16384a^7
г) (x^7 * x) / (x^3)^2 = x^8 / x^6 = x^(8-6) = x^2