Algebra-1

To simplify (2x² - 5y³)², we can use the formula for the square of a binomial:

(a - b)² = a² - 2ab + b²

In this case, a is 2x² and b is 5y³. Substituting these values into the formula, we get:

(2x² - 5y³)² = (2x²)² - 2(2x²)(5y³) + (5y³)²
           = 4x⁴ - 20x²