Algebra-1

To simplify (4a + 5b)², we can use the formula for the square of a binomial:

(a + b)² = a² + 2ab + b²

In this case, a is 4a and b is 5b. Substituting these values into the formula, we get:

(4a + 5b)² = (4a)² + 2(4a)(5b) +(5b)²
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