Question

5（x^3·y^2)^2/(5x^2)^3 等于多少?

Answer 1

原式 = 5 * (x^3)^2 * (y^2)^2 / [5^3 * (x^2)^3]

= (5 * x^6 * y^4) / (125 * x^6)

= y^4 / 25