Algebra-1

To simplify (2x - y)², we can use the formula for the square of a binomial:

(a - b)² = a² - 2ab + b²

In this case, a is 2x and b is y. Substituting these values into the formula, we get:

(2x - y)² = (2x)² - 2(2x)(y) + (y)²
    &nb...