Question

алгебра уранение пропнропопо

Answer 1

((3x)^9*(9x^4)^3) / ((3x^3)^5 * (27x)^3 * x) = 75
(3^9x^9 * 9^3x^12) / (3^5x^15 * 27^3*x^3 * x) = 75
3^9*3^6*x^21 / 3^5*3^9*x^19 = 75
3^15*x^21 / 3^14*x^19 = 75
3*x^2 = 75
x^2 = 75 / 3
x^2 = 25
x = +-5