Question

Примените формулу (а-б)(а+б)=а^2-б^2 76*84=(....-....)(....+.....)

Answer 1

Ответ:

Объяснение:

76*84=(80-4)(80+4)=80²-4²=6400-16=6384.

Answer 2

To apply the formula (a - b)(a + b) = a^2 - b^2, we can use the numbers a = 80 and b = 4:

76 * 84 = (80 - 4)(80 + 4)

Now, let's calculate the result:

76 * 84 = 76 * 84 = 6,384

(80 - 4)(80 + 4) = 76 * 84 = 6,384

So, 76 * 84 can be expressed as (80 - 4)(80 + 4) using the given formula.