Question

(√19+√17)*(√19-√17) = ?

Answer 1

(√19+√17)*(√19-√17)=
(√19)²-(√17)²=19-17=2

Answer 2

Решение. Используем формулу разности квадратов
19-17=2
Ответ 2

Answer 3

To simplify the expression (√19 + √17) * (√19 - √17), we can use the difference of squares formula, which states that (a + b) * (a - b) = a^2 - b^2.

In this case, a = √19 and b = √17. Applying the formula, we have:

(√19 + √17) * (√19 - √17) = (√19)^2 - (√17)^2

Simplifying further:

= 19 - 17

= 2

Therefore, (√19 + √17) * (√19 - √17) is equal to 2.