Question

19²-9²= Вычислить : помогите

Answer 1

(19-9)(19+9)

10*28

280

Answer 2

19²-9²=(19+9)(19-9)=28*10=280

формула сокращенного умножения - разность квадратов

Answer 3

Sure, I can help you with that!

To calculate 19² - 9², we'll start by finding the square of each number:

19² = 19 * 19 = 361 9² = 9 * 9 = 81

Now, subtract the square of 9 from the square of 19:

19² - 9² = 361 - 81 = 280

So, 19² - 9² equals 280.