Algebra-1

To simplify (5m + 3n)², we can use the formula for the square of a binomial:

(a + b)² = a² + 2ab + b²

In this case, a is 5m and b is 3n. Substituting these values into the formula, we get:

(5m + 3n)² = (5m)² + 2(5m)(3n) +(3n)²
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