Question

(2√7-3√2)×(2√7+3√2)=?​

Answer 1

Ответ:

(2√7-3√2)×(2√7+3√2)=4×7-9×2=28-19=10.

Пошаговое объяснение:

(2√7-3√2)×(2√7+3√2)=

1)упрощаем выражение

=4×7-9×2=

2)умножаем числа

=28-18=

3) вычитаем числа

=10.

Answer 2

To solve the expression (2√7-3√2)×(2√7+3√2), we can use the formula for multiplying two binomials, which is (a - b)(a + b) = a^2 - b^2.

In this case, let's consider (2√7) as "a" and (3√2) as "b". Applying the formula, we have:

(a - b)(a + b) = a^2 - b^2 = (2√7)^2 - (3√2)^2 = (2√7)^2 - 3^2(√2)^2 = 4(7) - 9(2) = 28 - 18 = 10

Therefore, (2√7-3√2)×(2√7+3√2) equals 10.