Question

Вычислите: 12²-11² .

Answer 1

Ответ:

23.

Пошаговое объяснение:

$12 ^{2} - {11}^{2} = (12 - 11) \times (12 + 11) = 1 \times 23 = 23$

Answer 2

Ответ:

$23$

Пошаговое объяснение:

$1 {2}^{2} - 1 {1}^{2}$

Используем формулу

${a}^{2} - {b}^{2} = (a - b)(a + b)$

$(12 - 11)(12 + 11) \\ 1 \times 23 \\ 23$

Answer 3

To calculate 12² - 11², you can use the formula for the difference of squares:

a² - b² = (a + b)(a - b)

In this case, a = 12 and b = 11:

12² - 11² = (12 + 11)(12 - 11) = 23 * 1 = 23

So, 12² - 11² is equal to 23.