Question

( √13 - √6 ) ( √13 +√6 )

Answer 1

( √13 - √6 ) ( √13 +√6 )=13-6=7

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

Answer 2

13-6=7 так как это формула сокращённого уравнения

Answer 3

We can use the formula for the difference of two squares, which states that:

(a - b)(a + b) = a^2 - b^2

Let's use this formula to simplify the expression ( √13 - √6 ) ( √13 +√6 ):

( √13 - √6 ) ( √13 +√6 ) = ( √13 )^2 - ( √6 )^2 [using the formula for the difference of two squares] = 13 - 6 = 7

Therefore, ( √13 - √6 ) ( √13 +√6 ) simplifies to 7.