Algebra-1

To expand and simplify (2m + 7)(2m - 7), we can use the formula for multiplying binomials:

(a + b)(a - b) = a² - b²

In this case, a is 2m and 7 is a. Substituting these values into the formula, we get:

(2m + 7)(2m - 7) = (2m)² - 7²
    &nb...