Simplify the product of

(2x-5y3)2

(2x-5y^3)^2 = (2x-5y^3)(2x-5y^3)

Expanding using FOIL method:
= 4x^2 - 10xy^3 - 10xy^3 + 25y^6
= 4x^2 - 20xy^3 + 25y^6

Therefore, the simplified product of (2x-5y^3)^2 is 4x^2 - 20xy^3 + 25y^6.