Algebra-1

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

(a - b)² = a² - 2ab + b²

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

(2m - 5n)² = (2m)² - 2(2m)(5n) + (5n)²
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