а) -0,24a^4b^5б) -1,2a^3b^6в) -72a^9b^12
а) 3^12 7^6 / 21^6 = (3^2 7^1)^6 / (3 7)^6 = 3^12 7^6 / 3^6 7^6 = 3^6 7^0 = 3^6б) 5^6 2^8 / 10^6 = (5^6 2^2) / 10^6 = 5^6 * 2^2 / 10^6 = 5^6 / 5^6 = 1
а) (x-2)(x+3) - (x+2)(x-1) = x^2 + 3x - 2x - 6 - x^2 + x = 2x - 6, при x = 1 2/3 значение = 1 1/3б) (x-3)(x+1) - (x+3)(x-2) = x^2 + x - 3x - 3 - x^2 + 2x - 3 = -2x - 3, при x = 1 1/3 значение = -2 2/3
а) -0,24a^4b^5
б) -1,2a^3b^6
в) -72a^9b^12
а) 3^12 7^6 / 21^6 = (3^2 7^1)^6 / (3 7)^6 = 3^12 7^6 / 3^6 7^6 = 3^6 7^0 = 3^6
б) 5^6 2^8 / 10^6 = (5^6 2^2) / 10^6 = 5^6 * 2^2 / 10^6 = 5^6 / 5^6 = 1
а) (x-2)(x+3) - (x+2)(x-1) = x^2 + 3x - 2x - 6 - x^2 + x = 2x - 6, при x = 1 2/3 значение = 1 1/3
б) (x-3)(x+1) - (x+3)(x-2) = x^2 + x - 3x - 3 - x^2 + 2x - 3 = -2x - 3, при x = 1 1/3 значение = -2 2/3