In 1–2 sentences, describe a scenario in which you might need to use the difference of two squares identity

to find the product of two numbers. First describe the general mathematical conditions and explain how you would find x and a. Then provide a specific, real-world scenario.

1 answer

One might need to use the difference of two squares identity to find the product of two numbers when the numbers can be expressed as (x+a)(x-a), with x representing the middle term and a being the square root of the difference of the squares. For example, in architecture, when calculating the area of a rectangular garden surrounded by a pathway with a width of a, by subtracting the area of the smaller rectangle (x-a) from the area of the larger rectangle (x+a), we can find the total area of the garden.